Back in April, Mother Nature Networkcarried a wonderful item about the amazing fractals that can be found in nature.
Nothing to do with dogs but all to do with loving and caring for our planet!
I am not going to republish the full article with all the wonderful photographs so if the following piques your curiosity then go here to read the full piece.
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14 amazing fractals found in nature
Take a tour through the magical world of natural fractals and discover the joy of simple complexity.
A chambered nautilus shell is an example of a fractal found in nature. (Photo: Jitze Couperus/flickr)
When you think of fractals, you might think of Grateful Dead posters and T-shirts, all pulsating with rainbow colors and swirling similarity. Fractals, first named by mathematician Benoit Mandelbrot in 1975, are special mathematical sets of numbers that display similarity through the full range of scale — i.e., they look the same no matter how big or how small they are. Another characteristic of fractals is that they exhibit great complexity driven by simplicity — some of the most complicated and beautiful fractals can be created with an equation populated with just a handful of terms. (More on that later.)
(Photo: Wikimedia Commons)
One of the things that attracted me to fractals is their ubiquity in nature. The laws that govern the creation of fractals seem to be found throughout the natural world. Pineapples grow according to fractal laws and ice crystals form in fractal shapes, the same ones that show up in river deltas and the veins of your body. It’s often been said that Mother Nature is a hell of a good designer, and fractals can be thought of as the design principles she follows when putting things together. Fractals are hyper-efficient and allow plants to maximize their exposure to sunlight and cardiovascular systems to most efficiently transport oxygen to all parts of the body. Fractals are beautiful wherever they pop up, so there’s plenty of examples to share.
The idea that humanity will not prevent the approaching disaster is beyond belief!
One of the results of all you great people signing up to follow Learning from Dogs is that it encourages me to share things that strike me as so, so important.
Another of the results in there being, as of today, 3,349 following this place, is that I get the sense of what many of you good people also feel is important. Ergo, it is clear to me, clear beyond doubt, that caring and loving a dog or two makes you a person who cares and loves passionately this beautiful planet that is our home.
The emotion that is spilling out of me via these words to you is a result of having just read an essay published recently on The Conversation site and shared with you today.
Directly, it has nothing to do with our dear dogs. Yet, in a way, it does!
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7.5 billion and counting: How many humans can the Earth support?
By Andrew D. Hwang, Associate Professor of Mathematics, College of the Holy Cross, July 9th 2018.
Humans are the most populous large mammal on Earth today, and probably in all of geological history. This World Population Day, humans number in the vicinity of 7.5 to 7.6 billion individuals.
Can the Earth support this many people indefinitely? What will happen if we do nothing to manage future population growth and total resource use? These complex questions are ecological, political, ethical – and urgent. Simple mathematics shows why, shedding light on our species’ ecological footprint.
The mathematics of population growth
In an environment with unlimited natural resources, population size grows exponentially. One characteristic feature of exponential growth is the time a population takes to double in size.
Exponential growth of world population
It took 127 years for the world population to double from one billion to two. By contrast, it took only 47 years, from 1927 to 1974, to double from two billion to four. Since 1960, world population has grown by about one billion every 13 years. Each point represents an additional one billion people.
Exponential growth tends to start slowly, sneaking up before ballooning in just a few doublings.
To illustrate, suppose Jeff Bezos agreed to give you one penny on Jan. 1, 2019, two pennies on Feb. 1, four on March 1, and so forth, with the payment doubling each month. How long would his $100 billion fortune uphold the contract? Take a moment to ponder and guess.
After one year, or 12 payments, your total contract receipts come to US$40.95, equivalent to a night at the movies. After two years, $167,772.15 – substantial, but paltry to a billionaire. After three years, $687,194,767.35, or about one week of Bezos’ 2017 income.
The 43rd payment, on July 1, 2022, just short of $88 billion and equal to all the preceding payments together (plus one penny), breaks the bank.
Real population growth
For real populations, doubling time is not constant. Humans reached 1 billion around 1800, a doubling time of about 300 years; 2 billion in 1927, a doubling time of 127 years; and 4 billion in 1974, a doubling time of 47 years.
On the other hand, world numbers are projected to reach 8 billion around 2023, a doubling time of 49 years, and barring the unforeseen, expected to level off around 10 to 12 billion by 2100.
This anticipated leveling off signals a harsh biological reality: Human population is being curtailed by the Earth’s carrying capacity, the population at which premature death by starvation and disease balances the birth rate.
World population projections
In 2020, the UN predicts that there will be 7,795,482 people worldwide.
Humans are consuming and polluting resources – aquifers and ice caps, fertile soil, forests, fisheries and oceans – accumulated over geological time, tens of thousands of years, or longer.
According to the Worldwatch Institute, an environmental think tank, the Earth has 1.9 hectares of land per person for growing food and textiles for clothing, supplying wood and absorbing waste. The average American uses about 9.7 hectares.
These data alone suggest the Earth can support at most one-fifth of the present population, 1.5 billion people, at an American standard of living.
A man works recycling plastic bottles outside Hanoi, Vietnam. REUTERS/Kham
Water is vital. Biologically, an adult human needs less than 1 gallon of water daily. In 2010, the U.S. used 355 billion gallons of freshwater, over 1,000 gallons (4,000 liters) per person per day. Half was used to generate electricity, one-third for irrigation, and roughly one-tenth for household use: flushing toilets, washing clothes and dishes, and watering lawns.
If 7.5 billion people consumed water at American levels, world usage would top 10,000 cubic kilometers per year. Total world supply – freshwater lakes and rivers – is about 91,000 cubic kilometers.
World Health Organization figures show 2.1 billion people lack ready access to safe drinking water, and 4.5 billion lack managed sanitation. Even in industrialized countries, water sources can be contaminated with pathogens, fertilizer and insecticide runoff, heavy metals and fracking effluent.
Freedom to choose
Though the detailed future of the human species is impossible to predict, basic facts are certain. Water and food are immediate human necessities. Doubling food production would defer the problems of present-day birth rates by at most a few decades. The Earth supports industrialized standards of living only because we are drawing down the “savings account” of non-renewable resources, including fertile topsoil, drinkable water, forests, fisheries and petroleum.
The drive to reproduce is among the strongest desires, both for couples and for societies. How will humans reshape one of our most cherished expectations – “Be fruitful and multiply” – in the span of one generation? What will happen if present-day birth rates continue?
Population stays constant when couples have about two children who survive to reproductive age. In some parts of the developing world today, couples average three to six children.
We cannot wish natural resources into existence. Couples, however, have the freedom to choose how many children to have. Improvements in women’s rights, education and self-determination generally lead to lower birth rates.
As a mathematician, I believe reducing birth rates substantially is our best prospect for raising global standards of living. As a citizen, I believe nudging human behavior, by encouraging smaller families, is our most humane hope.
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This essay from Professor Hwang is one of those articles that one frequently sees online that comes across as really interesting but, in the end, only gets a skim read; at best.
So if you didn’t fully comprehend what the good Professor included then ‘Stop‘ and go back and read it all very carefully.
Don’t just be alarmed at Professor Hwang writing:
This anticipated leveling off signals a harsh biological reality: Human population is being curtailed by the Earth’s carrying capacity, the population at which premature death by starvation and disease balances the birth rate.
Or:
Though the detailed future of the human species is impossible to predict, basic facts are certain. Water and food are immediate human necessities. Doubling food production would defer the problems of present-day birth rates by at most a few decades. The Earth supports industrialized standards of living only because we are drawing down the “savings account” of non-renewable resources, including fertile topsoil, drinkable water, forests, fisheries and petroleum.
Be concerned that each and every one of us, as in you and me, can only prevent the train crash by making a change in how we live: Today!
Otherwise ….
In so many ways we are such a clever and inventive race, capable of exploring the farthest reaches of outer space and the innermost aspects of quantum mechanics. Surely we must learn to live sustainably on beautiful Planet Earth!
We have to keep banging this drum on behalf of our wildlife!
OK! This new essay from George Monbiot applies specifically to the United Kingdom. But there’s no question in my mind that awareness of what is going in the U.K. will be important for readers in many other countries.
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Incompetence By Design
As state bodies are dismantled, corporations are freed to rip the living world apart
By George Monbiot, published in the Guardian 4th July 2018
It feels like the collapse of the administrative state – and this is before Brexit. One government agency after another is losing its budget, its power and its expertise. The result, for corporations and the very rich, is freedom from the restraint of law, freedom from the decencies they owe to other people, freedom from democracy. The public protections that constrain their behaviour are being dismantled.
An example is the cascading decline in the protection of wildlife and environmental quality. The bodies charged with defending the living world have been so enfeebled that they now scarcely exist as independent entities. Natural England, for example, has been reduced to a nodding dog in the government’s rear window.
Its collapse as an autonomous agency is illuminated by the case that will be heard next week in the High Court, where two ecologists, Tom Langton and Dominic Woodfield, are challenging its facilitation of the badger cull. That the cull is a senseless waste of life and money is well established, but this is only one of the issues being tested. Another is that Natural England, which is supposed to assess whether the shooting of badgers causes wider environmental harm, appears incapable of discharging its duties.
As badger killing spreads across England, it intrudes upon ever more wildlife sites, some of which protect animals that are highly sensitive to disturbance. Natural England is supposed to determine whether allowing hunters to move through these places at night and fire their guns has a detrimental effect on other wildlife, and what the impact of removing badgers from these ecosystems might be. The claimants allege that it has approved the shooting without meaningful assessments.
Some of its decisions, they maintain, are farcical. In Dorset, for example, Natural England assumed that overwintering hen harriers and merlins use only one out of all the sites that have been designated for their protection, and never stray from it. It makes the same assumption about the Bewick’s swans that winter around the Severn estuary. That birds fly, enabling them to move from one site to another, appears to have been overlooked.
Part of the problem, the claimants argue, is that staff with specialist knowledge have been prevented from making decisions. The location of the badger cull zones is such a closely guarded secret that Natural England’s local staff are not allowed to see the boundaries. As a result, they can make no meaningful assessment of what the impact might be. Instead, the decisions are made in distant offices by people who have not visited the sites.
I wanted to ask Natural England about this, but its external communications have been shut down by the government: any questions now have to be addressed to Michael Gove’s environment department, Defra. Defra told me “staff carrying out this work have all the necessary information. It would be inappropriate to comment on an ongoing legal matter.” How can Natural England be an independent body when the government it is supposed to monitor speaks on its behalf?
Another example of how far Natural England has fallen is the set of deals it has struck with grouse moor owners, allowing them to burn protected habitats, kill protected species and build roads across sites that are supposed to be set aside for wildlife. For several years, the redoubtable conservationist Mark Avery has been fighting these decisions. This May, Natural England conceded, in effect, that he was right. The agency that is meant to protect our wild places has been colluding in their destruction.
A correspondent from within Natural England tells me its staff are so demoralised that it has almost ceased to function. “Enforcement, for example, is close to non-existent … Gove seems to have somehow both raised the profile of environmental issues whilst simultaneously stripping the resources … it has never been as bad as this.”
In March, the House of Lords reported that Natural England’s budget has been cut by 44% since it was founded in 2006. The cuts have crippled both its independence and its ability to discharge its duties. It has failed to arrest the catastrophic decline in our wildlife, failed to resist the housebuilders trashing rare habitats and abandoned its regulatory powers in favour of useless voluntary agreements. As if in response, the government cut the agency’s budget by a further 14%.
Dominic Woodfield, one of the claimants in the court case next week, argues that Natural England has been “on death row” since it applied the law at Lodge Hill in Kent, where the Ministry of Defence was hoping to sell Britain’s best nightingale habitat to a housing developer. Natural England had no legal choice but to designate this land as a site of scientific interest, hampering the government’s plans. As the government slashed its budget and curtailed its independence, the agency’s disastrous response has been to try to save itself through appeasement. But all this has done is to alienate its defenders, reduce its relevance and hasten its decline. “There are still good people in Natural England. But they’re broken. They talk very slowly because they’re thinking very carefully about everything they say.”
If this is happening before we leave the European Union, I can only imagine where we will stand without the protection of European law. The environmental watchdog that, according to Michael Gove, will fill the role now played by the European Commission, will know, like Natural England, that its budget is provided by the government and can be cut at the government’s discretion. What is to prevent it from being nobbled as other agencies have been?
Already, the deliberate mutilating of the administrative state, delivering incompetence by design, has released landowners, housebuilders and assorted polluters from regulatory restraint. Only through European law have government agencies been forced to discharge their duties. Brexit strips away this defence. And if, as some propose, it paves the way for One Nation Under Gove, we should, the evidence so far suggests, be even more alarmed.
But some of us are now mobilising to turn the great enthusiasm for wildlife and natural beauty in this country into political action, and to fight the dismantling of the laws that protect our precious wild places. Watch this space.
Mr. George Monbiot offers a deeply personal, deeply powerful reason to change!
I have long followed George Monbiot’s writings. Both for his writing skills and the many times he really spells it out. As in spelling out the madness of our present ways! Frequently I find him very inspiring. However, his latest essay In Memoriam is one of the best ones that I have read. It is a plea from George Monbiot to see what we are doing to our wildlife and our ecosystems.
It is republished here with George Monbiot’s very kind permission. I have taken the liberty of including a few recent photographs of the wildlife that graces our acres here in Oregon.
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In Memoriam
As our wildlife and ecosystems collapse, remembering is a radical act.
By George Monbiot, published in the Guardian 29th June 2018
It felt as disorientating as forgetting my pin number. I stared at the caterpillar, unable to attach a name to it. I don’t think my mental powers are fading: I still possess an eerie capacity to recall facts and figures and memorise long screeds of text. This is a specific loss. As a child and young adult, I delighted in being able to identify almost any wild plant or animal. And now it has gone. This ability has shrivelled from disuse: I can no longer identify them because I can no longer find them.
Perhaps this forgetfulness is protective. I have been averting my eyes. Because I cannot bear to see what we have done to nature, I no longer see nature itself. Otherwise, the speed of loss would be unendurable. The collapse can be witnessed from one year to the next. The swift decline of the swift (down 25% in five years) is marked by the loss of the wild screams that, until very recently, filled the skies above my house. My ambition to see the seabird colonies of the Shetlands and St Kilda has been replaced by the intention never to visit those islands during the breeding season: I could not bear to see the empty cliffs, whose populations have crashed by some 90% this century.
I have lived long enough to witness the vanishing of wild mammals, butterflies, mayflies, songbirds and fish that I once feared my grandchildren would experience: it has all happened faster than even the pessimists predicted. Walking in the countryside or snorkelling in the sea is now as painful to me as an art lover would find her visits to a gallery, if on every occasion another Old Master had been cut from its frame.
The cause of this acceleration is no mystery. The United Nations reports that our use of natural resources has tripled in 40 years. The great expansion of mining, logging, meat production and industrial fishing is cleansing the planet of its wild places and natural wonders. What economists proclaim as progress, ecologists recognise as ruin.
We have a fatal weakness: a failure to perceive incremental change. As natural systems shift from one state to another, we almost immediately forget what we have lost. I have to make a determined effort to remember what I saw in my youth. Could it really be true that every patch of nettles, at this time of year, was reamed with caterpillar holes? That flycatchers were so common I scarcely gave them a second glance? That the rivers, around the autumn equinox, were almost black with eels?
Others seem oblivious. When I have criticised current practice, farmers have sent me images of verdant monocultures of perennial rye grass, with the message “look at this and try telling me we don’t look after nature”. It’s green, but it’s about as ecologically rich as an airport runway. One of my readers, Michael Groves, records the shift he has seen in the field beside his house, where the grass, that used to be cut for hay, is now cut for silage. Watching the cutters being driven at great speed across the field, he realised that any remaining wildlife would be shredded. Soon afterwards, he saw a roe deer standing in the mown grass. She stayed throughout the day and the following night. When he went to investigate, he found her fawn, its legs amputated. “I felt sickened, angry and powerless … how long had it taken to die?”. That “grass-fed meat” the magazines and restaurants fetishise? This is the reality.
When our memories are wiped as clean as the land, we fail to demand its restoration. Our forgetting is a gift to industrial lobby groups and the governments that serve them. Over the past few months, I have been told repeatedly that the environment secretary, Michael Gove, gets it. I have said so myself: he genuinely seems to understand what the problems are and what needs to be done. Unfortunately, he doesn’t do it.
He cannot be blamed for all of the fiascos to which he has put his name. The 25-year plan for nature was, it seems, gutted by the Prime Minister’s office. The environmental watchdog he proposed was defanged by the Treasury (it has subsequently been lent some dentures by Parliament). Other failures are all his own work. In response to lobbying from sheep farmers, he has allowed ravens, a highly intelligent and long-lived species just beginning to recover from centuries of persecution, to be killed once more. There are 24 million sheep in this country and 7400 pairs of ravens. Why must all other species give way to the white plague?
Responding to complaints that most of our national parks are wildlife deserts, Gove set up a commission to review them. But governments choose their conclusions in advance, through the appointments they make. A more dismal, backward-looking and uninspiring panel would be hard to find: not one of its members, as far as I can tell, has expressed a desire for significant change in our national parks, and most of them, if their past statements are anything to go by, are determined to keep them in their sheepwrecked and grouse-trashed state.
Now the lobbyists demand a New Zealand settlement for farming after Brexit: deregulated, upscaled, hostile to both wildlife and the human eye. If they get their way, no landscape, however treasured, will be safe from broiler sheds and mega-dairy units, no river protected from run-off and pollution, no songbird saved from local extinction. The merger between Bayer and Monsanto brings together the manufacturer of the world’s most lethal pesticides with the manufacturer of the world’s most lethal herbicides. Already the concentrated power of these behemoths is a hazard to democracy; together they threaten both political and ecological disaster. Labour’s environment team have scarcely a word to say about any of it. Similarly, the big conservation groups, as usual, have gone missing in inaction.
We forget even our own histories. We fail to recall, for example, that the Dower report, published in 1945, envisaged wilder national parks than we now possess, and that the conservation white paper the government issued in 1947 called for the kind of large-scale protection that is considered edgy and innovative today. Remembering is a radical act.
That caterpillar, by the way, was a six spot burnet: the larva of a stunning iridescent black and pink moth that once populated my neighbourhood and my mind. I will not allow myself to forget again: I will work to recover the knowledge I have lost. For I now see that without the power of memory, we cannot hope to defend the world we love.
More evidence that supports the sense, the very great sense, in going vegan!
Some three weeks ago, on June 15th to be exact, I published a post called On Veganism. Jean and I had just watched a film What The Health and what it presented in terms of eating chicken and fish convinced us to immediately go the final step, as in going from being vegetarians to vegans.
Many of you offered kind words and encouragement. Colette Bytes included a link to a blog post that she published in April, 2017. It is called Vegan Future and with her kind permission that post is republished today.
It is chock full of information and videos so do settle down and let all the information provided by Colette ‘speak’ to you! This is really worthy of an evening spent watching all the videos!
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Vegan Future
by Colette Bytes, April 21st 2017
Seventeen percent of human caused greenhouse gases, come from meat and dairy production. It is actually a greater figure than all CO2 produced by global transportation!
Posted by The Daily Conversation
But is it enough, just to reduce our animal consumption, or should we look at the compelling evidence that we need a Vegan future!
Animal and Environmental Ethics
On a previous blog, I mention the documentary ‘Earthlings’ narrated by Hollywood actor, and lifelong Vegan, Joachim Phoenix. ‘Earthlings’ is the definitive Vegan film on exposing the meat and dairy industry in the US. And while other countries may not have factory farming on such a broad scale, many of the same procedures occur on a smaller scale. No member of the general public is allowed into the kill sections of slaughter houses for a very good reason. It is horrendous to watch a fear-ridden animal that wants to live, face its painful death.
This filmed reaction of a viewer watching ‘Earthlings’ is an average reaction. It is a moving experience for anyone with compassion. Posted by Raw Vegan, Fruitarian, Michael Lanfield, it is worth watching if you cannot bring yourself to actually watch the devastating, but common images of the meat, dairy and egg industry.
Switching your food intake to a plant-based Vegan diet, (eliminating all meat, dairy, egg and seafood), is the biggest change with the most impact that you can possibly make to reduce climate warming, land and water degradation, extinction rates, deforestation, pollution, human and animal suffering, and war (often over lack of food and water resources). And It is the number one thing you can do to improve your own health. It can also cut the cost of your food bill while you continue to eat a healthy diet.
There is no downside to this change if you keep your diet healthy and balanced. You can even eat processed plant-based, meat-like products if you want, but they may cost a similar amount to having meat in your diet.
The United Nations has already stated that we need to switch to a plant based diet if we are to survive.
Australian, James Aspey, a survivor of thyroid cancer, has become a Vegan Speaker (on ending animal cruelty) with his own Youtube channel, but he is also one of an exponentially growing number of people who have improved their own health through a plant based diet switch.
Lots of new Ethical, Healthy Vegan Ready Made meals like this brand are appearing now on Super market shelves. So even if you don’t ‘do cooking’ you can still find nutritious Vegan options. And Vegan restaurants, holidays and lifestyles are all available now.
And new research is beginning to show that meat and dairy are actually toxic to our body.
Meat is a neurotoxin, Posted by 8/10/10 in London
And for when you have time, do listen to this amazing and life changing Cardiologist’s 1:20:00 hrs talk…on your likelihood of developing heart disease, diabetes, and other life threatening diseases on a meat based diet…and also look at doctor Greger’s work and videos too (links below)
Robert Ostfeld, Cardiologist and Director of a US Cardiology Centre. Posted by Jeanne Schumacher, ‘Plant Power’ YouTube channel
Elite Athletes and Hollywood Icons
You’d be surprised how many top athletes eat a vegan diet just to be at the top of their sport…Names like Serena and Venus Williams, Novak Djokovic, and Andy Murray, are all Vegans. Winner of the world Strongman competition is Vegan. Many top boxers eat vegan. Look at PlantBased News on YouTube for lots of informative videos on who is Vegan. And see their 100 countdown of awesome Vegan celebrities.
Top 2017 Vegans posted by PlantBased News
Making the change to Vegan
Eating junk plant-based foods is not advisable as it will lead to nutrient deficiencies…and ultimately a disease state, so you can’t survive on potato crisps, popcorn, and bread….there is a responsibility to eat a balanced fresh food diet to be healthy.
You do need to eat proteins (nuts, legumes, grains, beans, some veggies). You will need to supplement with Vitamin B12, a soil- based, active nutrient essential for our brain & nervous system which we do not get in our diet as we no longer forage and eat unwashed food like our ape ancestors. And you may need to supplement Vit D3 for bone health as we no longer spend enough time outside in the sunshine. Essential oil, Omega 3 can be obtained from flax and hemp seeds. The rest, you should be able to get from a ‘good’ Vegan diet with lots of vegetables, fruits, legumes, beans, grains and nuts. Just 15 grams of nuts per day will give you enough protein to be healthy. Eating Kale and other dark leafy plants, beans, whole grain rice, legumes and some nuts, sweet potatoes are all sources of Calcium. The key to health is to have a full, varied selection of whole plant-based food!
Meat and Dairy Industry Scare Tactics
The Meat and Dairy industry packers are worried that they will lose their industry and are fighting back with their political power and disinformation campaigns designed to scare us, but the smart companies will begin to think about how they can profit from exponential growth in the Vegan food industry.
Corporate Panick, posted by PlantBased News Research
There are so many online sources to help you buy, and cook a healthy plant-based diet. Just type ‘Vegan Recipies’ into a search engine and you will find fantastic yummy recipes. You will love the variety and the taste of your new diet. And if you are not into cooking, mainstream supermarkets are now starting to stock a growing variety of vegan ready made meals, and starting to label Vegan choices.
An all round informative website on Vegan trends, news headlines, and increasing popularity of healthy lifestyles including a plant- based diet. Medical based RESOURCES on how to stay healthy on a Vegan diet
Dr Michael Greger, MD, author of Best Seller, ‘How Not to Die’ and distributer of free videos and research on how plant based diets affect us. I have followed his work for years and he backs it all up with science based studies…his short videos and reports are packed with hundreds of supportive reports for a plant based diet.
Vegan Junction list of Plant-Based Diet health professionals More Videos
Open Your Eyes – Toronto Pig Save posted by Bite-Size-Vegan
How not To Die – plant based diet by Dr Michael Greger Latest documentaries to look up
Carnage (only on BBC iPlayer)
The Game Changers
Eating our way to Extinction
What the Health!
Plant Pure Nutrition
And there are so many more resources out there ! Join the growing trend to make this a better world for everyone, by making the biggest difference you can when you shop for food. Pick whole, plant-based, foods and kick the ‘animal eating’ habit to be healthy, stop animal cruelty, and save the environment and reduce global greenhouse gases. What could be a more worthy goal?
This is so much more than just a blog post from Colette. It is a fantastic source of information, from a variety of sources, about why it makes such good sense to become a vegan.
I shall include it as a link from the home page of Learning from Dogs so it may serve as a reference long after it was republished today.
Then what about dogs eating a vegan diet? Sounds a bit strange? Maybe not! I shall be exploring that option with Halo, a company based in Florida, who claim:
Can dogs be vegan? Unlike cats, who are obligate carnivores, dogs can be fed a vegan diet as long as it’s high quality and nutritionally balanced like Halo®Garden of Vegan® dog food.
More on this next week.
In the meantime, I’m taking a day off tomorrow but please do read George Monbiot’s latest post, being republished here on Friday, 6th July.
Why it’s time to curb widespread use of neonicotinoid pesticides
ByJohn F. Tooker Associate Professor of Entomology and Extension Specialist, Pennsylvania State University
Planting season for corn and soybeans across the U.S. corn belt is drawing to a close. As they plant, farmers are participating in what is likely to be one of the largest deployments of insecticides in United States history.
Almost every field corn seed planted this year in the United States – approximately 90 million acres’ worth – will be coated with neonicotinoid insecticides, the most widely used class of insecticides in the world. The same is true for seeds in about half of U.S. soybeans – roughly 45 million acres and nearly all cotton – about 14 million acres. In total, by my estimate, these insecticides will be used across at least 150 million acres of cropland, an area about the size the Texas.
Neonicotinoids are very good at killing insects. In many cases they require only parts per billion, equivalent to a few drops of insecticide in a swimming pool of water.
In recent years, concerns have been raised about the influence of neonicotinoids on bee populations. As an applied insect ecologist and extension specialist who works with farmers on pest control, I believe the focus on bees has obscured larger concerns. In my view, U.S. farmers are using these pesticides far more heavily than necessary, with potential negative impacts on ecosystems that are poorly understood.
Pesticides on seeds
Most neonicotinoids in the United States are used to coat field crop seeds. Their role is to protect against a relatively small suite of secondary insect pests – that is, not the main pests that tend to cause yield loss. National companies or seed suppliers apply these coatings, so that when farmers buy seed, they just have to plant it.
The percentage of corn and soybean acreage planted with neonicotinoid seed coatings has increased dramatically since 2004. By 2011, over 90 percent of field corn and 40 percent of soybeans planted were treated with a neonicotinoid. Between 2011 and 2014, the area treated crept toward 100 percent for corn and 50 percent for soybeans. And the mass of neonicotinoids deployed in each crop doubled, indicating that seed suppliers applied about twice as much insecticide per seed. Unfortunately, many farmers are unaware of what is coated on their seeds, while others like the peace of mind that comes from an apparently better protected seed.
Unlike most insecticides, neonicotinoids are water soluble. This means that when a seedling grows from a treated seed, its roots can absorb some of the insecticide that coated the seed. This can protect the seedling for a limited time from insects. But only a small fraction of the insecticide applied to seeds is actually taken up by seedlings. For example, corn seedlings only take up about 2 percent, and it only persists in the plant for two to three weeks. The critical question is where the rest goes.
Clothianidin is a neonicotinoid used almost exclusively as a coating on seed corn. Maps from USGS.
Pervading the environment
Because neonicotinoids are water soluble, the leftover insecticide not taken up by plants can easily wash into nearby waterways. Neonicotinoids from seed coatings are now routinely found polluting streams and rivers around the country.
Neonicotinoids also can strongly influence pest and predator populations in crop fields. My lab’s research has revealed that use of coated seeds can indirectly reduce crop yield by poisoning insect predators that usually kill slugs, which are important crop pests in mid-Atlantic corn and soybeans fields.
Slugs, shown here on a soybean plant, are unaffected by neonicotinoids, but can transmit the insecticides to beetles that are important slug predators. Nick Sloff/Penn State University, CC BY-ND
An exaggerated need
Neonicotinoid advocates point to reports – often funded by industry – which argue that these products provide value to field crop agriculture and farmers. However, these sources typically assume that insecticides of some type are needed on every acre of corn and soybeans. Therefore, their value calculations rest on comparing neonicotinoid seed coatings to the cost of other available insecticides.
History shows that this assumption is clearly faulty. In the decade before neonicotinoid seed coatings entered the market, only about 35 percent of U.S. corn acres and 5 percent of soybean acres were treated with insecticides. In other words, pest populations did not cause economically significant harm very often.
Importantly, the pest complex attacking corn today is more or less the same as it was in the 1990s. This suggests that it is not necessary to treat hundreds of millions of acres of crops with neonicotinoid seed coatings.
Neonicotinoids can harm birds via multiple pathways, sometimes in very small quantities.
From overkill to moderation
Should the United States follow the European Union’s lead and pass a broad ban on neonicotinoids? In my view, action this drastic is not necessary. Neonicotinoids provide good value in controlling critical pest species, particularly in vegetable and fruit production. However, their use on field crops needs to be reined in.
In the Canadian province of Ontario, growers can only use neonicotinoid seed treatments on 20 percent of their acres. This seems like a good start, but does not accommodate farmers’ needs very well.
Integrated Pest Management (IPM), a control strategy based on using pesticides only when they are economically justified, offers valuable guidelines. It was introduced in the late 1950s in response to issues stemming from overuse of insecticides, including environmental damage and pest populations that had evolved resistance. Field-crop growers have a good history of using IPM, but current use of neonicotinoids ignores pest risk and conflicts with this approach.
To implement IPM in field crops with neonicotinoids, seed companies need to acknowledge that the current approach is overkill and poses serious environmental hazards. Extension entomologists will then need to provide growers with unbiased information on strengths and limitations of neonicotinoids, and help farmers identify crop acres that will benefit from their use. Finally, the agricultural industry needs to eliminate practices that encourage unnecessary use of seed coatings, such as bundling together various seed-based pest management products, and provide more uncoated seeds in their catalogs.
These steps could end the ongoing escalation of neonicotinoid use and change the goal from “wherever possible” to “just enough.”
[Ed: Text taken from a chart 
see what we have done to nature, I no longer see nature itself. Otherwise, the speed of loss would be unendurable. The collapse can be witnessed from one year to the next. The swift decline of the swift (
I have lived long enough to witness the vanishing of 
my readers, Michael Groves, records the shift he has seen in the field beside his house, where the grass, that used to be cut for hay, is now cut for silage. Watching the cutters being driven at great speed across the field, he realised that any remaining wildlife would be shredded. Soon afterwards, he saw a roe deer standing in the mown grass. She stayed throughout the day and the following night. When he went to investigate, he found her fawn, its legs amputated. “I felt sickened, angry and powerless … how long had it taken to die?”. That “grass-fed meat” the magazines and restaurants fetishise? This is the reality.
Learning from Dogs 