Year: 2016

Picture parade one hundred and thirty-seven

Another Sunday, another set of fabulous images.

(Thanks to Su for sending them on to me.)

various2oooo

various3oooo

various4oooo

various5oooo

various6oooo

various7oooo

various8oooo

various9More of these in a week’s time.

Meantime, you all look after yourselves and all your loved ones.

All upside down today!

As shared by Roger Davis, a gliding colleague from way back.

and

The things we do for fun!

Have a wonderful weekend, everyone, whatever your attitude!

That giving spirit.

Will you help my son support Parkinson’s UK?

Back on the 24th of February I published a post under the title of Personal Journeys. It opened thus:

Life is a one-way track.

Those of you who follow this place on a regular basis know that last Friday I published a post under the title of Friday Fondess. You will also know that later that same day I left this comment to that post:

Sue, and everyone else, we returned from seeing Dr. Lee, the neurologist, a little under two hours ago. Dr. Lee’s prognosis is that Jean is showing the very early signs of Parkinson’s disease, and Jean is comfortable with me mentioning this.

Everyone’s love and affection has meant more than you can imagine. I will write more about this next week once we have given the situation a few ‘coatings of thought’.

Jean sends her love to you all!

Thus, as heralded, I am going to write some more.

You would not be surprised to hear that the last few days have been an emotional roller-coaster, for both Jean and me. Including on Monday Jean hearing from our local doctor here in Grants Pass, OR, that a recent urine test has shown that Jean has levels of lead in her bones some three times greater than the recommended maximum. While our doctor is remaining open-minded it remains to be seen whether Jean is exhibiting symptoms of lead poisoning, whether the lead is a possible cause of the Parkinson’s disease (PD), see this paper, or whether it is a separate issue to be dealt with.

Both my son and my daughter, Alex and Maija, have been very supportive. Alex has even decided to ride in the Ride London 2016 and raise funds for the notable charity Parkinson’s UK. Parkinson’s Disease is affecting more and more people and there is a great incentive to help any charity in pushing back against this disease. As the sub-title on that Parkinson’s UK home page declares, “CHANGE ATTITUDES, FIND A CURE, JOIN US.”

Alex has started a little blog to record his preparation for his charity ride:

ooOOoo

AlexThis is my blog about training for Ride London 2016, on it I will detail what I get up to, who I’m raising money for and also cycling kit reviews as well.

So I entered the ballot for ride London this year and was unlucky, probably as I’m one of 20,000 odd middle aged men in Lycra (MAMIL) who try to get in every year, so I got my lovely rejection magazine and a cycling top as well.

I then found out that my stepmum Jean, has just been diagnosed with Parkinson’s disease, so I thought I would enter on a charity place and raise some much needed funds for research into this disease.  Found out last week that I have been lucky to get onto a charity place and so the training begins…

Link to my fundraising page, thanks 👍

ooOOoo

Please, please if anyone would like to chip in anything at all you can trust me that it will be greatly appreciated by Alex and all those around him. Donations, both from within the UK and overseas, may be made by going here.

Thank you!

Interconnections Three

Is there a case for optimism? You bet there is!

To be honest, at a personal level I just don’t know the answer to that question. It seems to depend on the mood that Jean and I are in at any particular time. All I can fall back on is that well-used saying from me: “Never underestimate the power of unintended consequences”.

In other words, we shouldn’t underestimate the strength of millions of good people when their demands start reaching out to those in power. (And whatever your reaction to this post, please don’t miss watching the inspirational Al Gore speech towards the end of this post.)

Recently over on the Grist site there was an article about the critical changes that each and every one of us should be making. I want to share it with you in full.

ooOOoo

Want to fight climate change? Here are the 7 critical life changes you should make

Interconnections Two

Continuing the stark assessment of where we are today.

In yesterday’s post I covered the first five of the eleven facts about sea-level rise. Here are the rest of those facts.

ooOOoo

 

11 alarming facts about sea-level rise

Russell McLendon, February 26, 2016.

6. Sea levels could rise another 1.3 meters (4.3 feet) in the next 80 years.

sea-level rise mapThis map shows areas that would flood (marked in red) due to 1-meter sea-level rise. (Photo: NASA)

In another study published this month, scientists report that global sea levels will likely rise 0.5 to 1.3 meters (1.6 to 4.3 feet) by the end of this century if greenhouse gas emissions aren’t rapidly reduced. Even if last year’s Paris Agreement does spur ambitious climate policy, sea levels are still projected to rise 20 to 60 cm (7.8 to 23.6 inches) by 2100. Taken with the longer-term effects from melting ice sheets in Greenland and Antarctica, that means any strategy to endure sea-level rise must involve adaptation plans as well as efforts to slow the trend.

7. Up to 216 million people currently live on land that will be below sea level or regular flood levels by 2100.

coastal flooding in Typhoon FitowHigher sea levels can exacerbate storm surges, like this 2013 flood in Wenzhou, China. (Photo: STR/AFP/Getty Images)

Of the estimated 147 million to 216 million people in harm’s way, between 41 million and 63 million live in China. Twelve nations have more than 10 million people living on land at risk from sea-level rise, including China as well as India, Bangladesh, Vietnam, Indonesia and Japan. Bangladesh is especially vulnerable, identified by the U.N. as the country most in danger from rising seas. Once the ocean rises by 1.5 meters (4.9 feet) next century, it will affect 16 percent of Bangladesh’s land area and 15 percent of its population — that’s 22,000 km2 (8,500 mi2) and 17 million people.

The situation is also urgent for low-lying island nations like Kiribati, the Maldives, the Marshall Islands and the Solomon Islands, where land is already so close to sea level that a few inches make a world of difference. Some are even mulling mass relocations — the government of Kiribati, for one, has a web page outlining its strategy for “migration with dignity.” A town on Taro Island, the capital of Choiseul Province in the Solomon Islands, is also planning to move its entire population in response to rising seas. The small community of Newtok, Alaska, has already begun the difficult process of transplanting itself away from the encroaching coast.

8. Sea-level rise can contaminate water used for drinking and irrigation.

saltwater intrusionSea-level rise can aid saltwater intrusion of freshwater aquifers, as seen in this schematic illustration. (Image: NRC.gov)

In addition to surface flooding, sea-level rise can both push up the freshwater table and contaminate it with seawater, a phenomenon known as saltwater intrusion. Many coastal areas rely on aquifers for drinking water and irrigation, and once they’re tainted by saltwater they may be unsafe for humans as well as crops.

It is possible to remove salt from water, but the process is complex and costly. San Diego County recently opened the Western Hemisphere’s largest desalination plant, for example, and several other sites are proposed in the state. Yet that may not be practical for many coastal communities, especially in less wealthy nations.

9. It can also threaten coastal plant and animal life.

loggerhead sea turtle hatchlingFloods fueled by rising seas may harm baby sea turtles, like these South African loggerheads. (Photo: Jeroen Looyé/Flickr)

Humans aren’t the only ones who’ll suffer as sea levels rise. Any coastal plants or animals that can’t quickly move to new, less flood-prone habitats could face dire consequences. As one 2015 study noted, sea turtles have a long-established habit of laying eggs on beaches, which need to stay relatively dry for their babies to hatch.

Inundation for one to three hours reduced egg viability by less than 10 percent, the study’s authors found, but six hours underwater cut viability by about 30 percent. “All embryonic developmental stages were vulnerable to mortality from saltwater inundation,” the researchers write. Even for hatchlings that do survive, being starved of oxygen in the egg could lead to developmental problems later in life, they add.

Other beach life may also be at risk, including plants. A recent study found that some salt marshes can adapt, both by growing vertically and by moving inland, but not all flora will be so fortunate. “Trees have to work harder to pull water out of salty soil; as a result, their growth can be stunted — and if the soil is salty enough, they will die, a common sign of sea-level rise,” Climate Central explains. “Even trees that are especially suited to salty soil can’t survive repeated flooding by seawater.”

10. Global flood damage for large coastal cities could cost $1 trillion a year if cities don’t take steps to adapt.

sea-level rise in TokyoThis Google Earth simulation shows a Tokyo neighborhood with 1.3-meter sea-level rise. (Image: Google Earth)

The average global losses from flooding in 2005 were about $6 billion, but the World Bank estimates they’ll rise to $52 billion per year by 2050 based on socioeconomic changes alone. (That means things like increasing coastal populations and property value). If you add the effects of sea-level rise and sinking land — which is happening even faster in some places — the cost could surge to $1 trillion per year.

11. It’s too late to stop sea-level rise — but not too late to save lives from it.

iceberg off GreenlandA full moon shines over an iceberg that broke off Greenland’s Jakobshavn Glacier. If the entire Greenland ice sheet melted, sea levels would rise about 6 meters, or 20 feet. (Photo: Joe Raedle/Getty Images)

Unfortunately, CO2 emissions linger in the atmosphere for centuries, and today’s CO2 levels have already committed Earth to dangerous sea-level rise. About 99 percent of all freshwater ice resides in two ice sheets: one in Antarctica and one in Greenland. Both are expected to melt if humanity’s CO2 output isn’t curbed quickly, but the question is when — and how much damage we still have time to prevent.

The Greenland ice sheet is smaller and melting more quickly. If it completely melted, sea levels would rise by about 6 meters (20 feet). The Antarctic ice sheet has been more buffered from warming so far, but it’s hardly immune, and would raise the ocean by 60 meters (200 feet) if it melted. (Estimates vary widely on how long these ice sheets might survive — while most expect they’ll take centuries or millennia to melt, a controversial 2015 paper suggested it could happen much more quickly.)

Sea levels have naturally risen and receded for billions of years, but they’ve never risen this quickly in modern history — and they’ve never had so much human help. It’s unclear what effect they’ll have on our species, but what is clear is that our descendants will still be dealing with this problem long after we’re all gone. Giving them a head start on a solution is the least we can do.

“With all the greenhouse gases we already emitted, we cannot stop the seas from rising altogether, but we can substantially limit the rate of the rise by ending the use of fossil fuels,” says Anders Levermann, a climate scientist at Columbia University and co-author of the new study on future sea-level rise. “We try to give coastal planners what they need for adaptation planning, be it building dikes, designing insurance schemes for flooding or mapping long-term settlement retreat.”

As another recent study pointed out, any policy decisions made in the next few years and decades “will have profound impacts on global climate, ecosystems and human societies — not just for this century, but for the next ten millennia and beyond.”

ooOOoo

Tomorrow, in the final part of this three-part posting I will look at some positive things that we can all be doing now.

But let me leave you with a rather beautiful consequence of these changing times. As seen over on Grist:

ooOOoo

Incredible glacier art pays homage to our disappearing ice

Interconnections One.

The beat of a butterfly’s wings.

From Wikipedia:

The Butterfly Effect is a concept that small causes can have large effects. Initially, it was used with weather prediction but later the term became a metaphor used in and out of science.[1]

In chaos theory, the butterfly effect is the sensitive dependence on initial conditions in which a small change in one state of a deterministic nonlinear system can result in large differences in a later state. The name, coined by Edward Lorenz for the effect which had been known long before, is derived from the metaphorical example of the details of a hurricane (exact time of formation, exact path taken) being influenced by minor perturbations such as the flapping of the wings of a distant butterfly several weeks earlier. Lorenz discovered the effect when he observed that runs of his weather model with initial condition data that was rounded in a seemingly inconsequential manner would fail to reproduce the results of runs with the unrounded initial condition data. A very small change in initial conditions had created a significantly different outcome.

We all live in an interconnected world. Frankly, it’s such an obvious statement that one presumes that very few would not agree with the sentiment expressed within it.

But (and you knew there was a ‘but’ coming, didn’t you!) very few of us (and I include Jean and me to a very great extent) really understand, “A very small change in initial conditions had created a significantly different outcome.”

Take these few items; more or less randomly read over the last few days.

Such as this post over on Patrice Ayme’s blog.

Biblical Flood Starting Anew

Abstract: update on Sea Level Rise. The meat of the essay is at the end, in the section “THE SITUATION IS ACTUALLY CATACLYSMIC“.

Heard of The Flood? As in the Bible? Sea level rose 120 meters (400 feet), in the period centered around 10,000 years ago. The cause? More than half of Earth’s ice melted in a few millennia,  During the rest of the early Holocene, the rate of rise of the world’s ocean reached peaks as high as 60  millimeters (2.5 inches) per year. The melting of the ice happened because Earth’s positional and orbital parameters had made northern hemisphere’s summers too warm (most of the ice shields rested on the large continents of the north). Nowadays only two enormous ice shields are left: Greenland and Antarctica.

Those who enjoy catastrophes will love it: we have 75 meters of further sea rise to enjoy pretty soon, on our way to a Jurassic climate (the Jurassic was characterized by gigantic warm shallow seas on top of the continents). Here was the situation in the Miocene, when CO2 was at 500 ppm (where we will be at in ten years, see conclusion below).

Patrice said that the essence, the meat, of his essay was at the end. Here are his closing words:

Three scientific papers published in the last two months support my, admittedly drastic, point of view. One observed the collapse of a colossal glacier in northwest Greenland, eaten by a current at one degree C. It was a miniature reproduction of what to expect for entire ice shields. Two others observed the past, and that Antarctica was unstable at 500 ppm CO2. What they did not say is how dramatic the situation was. Indeed, sounding moderate is how they get funded by a benevolent, plutocratically ruled government (and by government, I also mean the corrupt Supreme Court, not just the latest elected buffoons). The scientists who evoked the 500 ppm of CO2 omitted two significant details, where the devil lurks. They claimed that it would take 30 years to get there. That’s not correct; at the present rate, we will add 100 ppm of CO2 within 25 years. But not just that: there are other man-made GreenHouse Gases (GHG): CH4, NOx, Fluorocarbons, etc. All these gases warm up the lower atmosphere much more than CO2. So the correct measurement is not CO2 ppm, but CO2 EQUIVALENT ppm.

We are right now ABOVE 450 ppm in EQUIVALENT CO2, and will be at 500 ppm within ten years. Let’s hope there will be more boats than on the Titanic.

Patrice Ayme’

P/S: If anything, the preceding is a conservative estimate. Indeed very serious scientists evaluated already the man-made greenhouse gases at 478 ppm in 2013. This means we will be above 500 ppm in CO2 equivalent within six years, in line with my previous analyses, such as “Ten Years To Catastrophe“. See:

http://oceans.mit.edu/news/featured-stories/5-questions-mits-ron-prinn-400-ppm-threshold

Now it’s not all ‘doom and gloom’ and there is much that each and every one of us can do. More of that in Interconnections Three on Thursday.

But to continue with this ‘wake up call’ I’m going to republish in full an item that was recently published over on Mother Nature Network: 11 alarming facts about sea-level rise. To stop today’s post being excessively long, I’m going to split that MNN article over today and tomorrow. Here are the first 5 alarming facts. (Don’t read them just before turning the light out when going to bed tonight!)

ooOOoo

11 alarming facts about sea-level rise

Russell McLendon,  February 26, 2016.
 Up to 216 million people currently live on land that will be below sea level or regular flood levels by 2100. (Photo: Shutterstock)
Up to 216 million people currently live on land that will be below sea level or regular flood levels by 2100. (Photo: Shutterstock)

The ocean is coming for us. Global sea levels are now rising by 3.4 millimeters per year, up from an average rate of 1.4 mm per year last century. In just 80 years, the ocean could be a full 1.3 meters (4.3 feet) taller than it is today.

That kind of planetary sea change can be hard to fathom — unless you live in a low-lying place like Miami, the Maldives or the Marshall Islands, where the effects of sea-level rise are already apparent. But within just a few decades, the problem will become unavoidable in major coastal cities around the world, from New Orleans, New York and Amsterdam to Calcutta, Bangkok and Tokyo.

We all know why this is happening. Rising seas are one of the most salient effects of man-made climate change, triggered by thermal expansion of seawater as well as the influx of melting glaciers. Yet many people still see it as a distant risk, failing to grasp how (relatively) quickly the sea is swallowing shores worldwide. And since half of all humans now live within 60 kilometers (37 miles) of a coast, this isn’t a niche issue.

To help put things in perspective, here’s a deeper look at the problem:

1. Global sea levels have already risen by 8 inches (200 mm) since 1880.

sea-level-rise-1880-2014

The chart above was produced by NASA’s Earth Observatory, based on data from the U.S. National Oceanic and Atmospheric Administration (NOAA) and Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO). Most of those historical data come from tide-gauge measurements, which are now complemented by satellite observations.

2. Not only are sea levels rising; the rate of their rise is rising.

Average global sea-level rise is now 3.41 mm per year, but the rate varies widely by location. (Image: NASA GSFC)
Average global sea-level rise is now 3.41 mm per year, but the rate varies widely by location. (Image: NASA GSFC)

On average, sea levels rose by 1.4 mm from 1900 to 2000. The yearly pace had surpassed 3 mm by 2010, and now it’s up to 3.4 mm per year.

3. That’s the fastest sea-level rise Earth has experienced in 3,000 years.

Cb5MxZ4WIAAAW06If not for surging carbon dioxide in the atmosphere, sea levels should have only risen about an inch or two last century, and might have even fallen. Instead, thanks to the highest CO2 levels at any point in human history, global sea levels rose by 5.5 inches (14 cm) between 1900 and 2000. That’s the fastest oceanic advance in 27 centuries, according to a study published Feb. 22, and it’s still speeding up.

“The 20th century rise was extraordinary in the context of the last three millennia — and the rise over the last two decades has been even faster,” says lead author Robert Kopp, a climate scientist at Rutgers University, in a statement.

“Scenarios of future rise depend upon our understanding of the response of sea level to climate changes,” adds co-author Benjamin Horton. “Accurate estimates of sea-level variability during the past 3,000 years provide a context for such projections.”

4. Every vertical inch of sea-level rise moves the ocean 50 to 100 inches inland.

Miami coastal flooding
Rising seas worsen regular flooding — like this 2015 high tide in Miami Beach — for many coastal cities. Miami is in the midst of a five-year, $400 million effort to upgrade its stormwater pump program. (Photo: Joe Raedle/Getty Images)

5. That’s already causing flood problems in many big coastal cities.

CLICK HERE TO SEE THE EFFECT ON BIG COASTAL CITIES

As the ocean invades coastal cities, the first signs of trouble are often urban saltwater floods. These can also happen naturally, though, so to determine the influence of rising seas, a new report by Climate Central models “alternative histories simulating the absence of anthropogenic climate change” at 27 U.S. tide gauges.

Out of 8,726 days since 1950 when unaltered water levels exceeded the National Weather Service thresholds for local “nuisance” floods, 5,809 didn’t exceed those thresholds in the alternative histories. “In other words,” the report explains, “human-caused global sea level rise effectively tipped the balance, pushing high-water events over the threshold, for about two-thirds of the observed flood days.”

Coastal flooding days have more than doubled in the U.S. since the 1980s, according to the report, in places ranging from Miami, Virginia Beach and New York to San Francisco, Seattle and Honolulu. According to a 2014 report, at least 180 floods will strike Annapolis, Maryland, during high tides every year by 2030 — sometimes twice a day. The same will be true for about a dozen other U.S. cities by 2045, not to mention many other low-lying urban areas around the world.

ooOOoo

To be continued tomorrow.

Make a leap!

Celestial rhythms

This seemed a rather appropriate post for today, February 29th.

Republished from here within the terms of The Conversation.

ooOOoo

Leap day: fixing the faults in our stars

The number 2016 divided by 4 equals 504, exactly – with no remainder, which makes the year 2016, like the upcoming years 2020, 2024 and 2028 (and beyond), a leap year. We will get an “extra” day, February 29.

This pattern will repeat until 2100, when the cycle breaks. Though 2100 is exactly divisible by 4, there is an exception – for years whose number is exactly divisible by 100. (On top of that, there’s another exception – for years exactly divisible by 400. So 2400 will be a leap year. Mark your calendars now.)

Where do these quadrennial liberties with our calendar originate?

In the stars, of course.

Celestial rhythms

One of the simplest joys of life is to watch the stars, night after night, month after month, year after year. They become old friends. They spend a season, and then move on. Or rather, it is we who move on – ever advancing around the sun toward next week’s deadlines, new constellations, new fashions and new ideas.

Orion, the annual visitor. Mouser, CC BY-SA

I imagine myself late one night, eight months from now, remembering the overfull recycling bin, at midnight on trash day. As I try to quietly dump wine bottles into the yellow-topped container, there striding over the eastern skyline is Orion. Back again is my ancient friend, telling me that winter is near, and that I have ridden this miraculous rock almost another full lap around my home star. Rigel shimmers its blue-white light, the twinkle in the eye (the knee, actually) of a companion who has visited me, annually, every place on Earth I have lived since childhood. Even to the Southern Hemisphere, the steady Orion came for a summer visit – cartwheeling upside down, feet over hands.

It is from these celestial cycles that our concepts of time originate, and, ultimately, from which we gain the leap day.

The sidereal year is the length of time it takes for the Earth to return to the same place with respect to the “fix’d” and “constant” stars, so that Orion appears exactly in the same place in the sky, at exactly midnight, 365.2563 days later. Stellar friends like that don’t stand you up; they keep their appointments to seven-digit precision (and more).

Right over the equator: A diagram showing the sun’s position relative to the Earth at the vernal equinox. Tfr000, CC BY-SA

Our Western calendar is tied to the tropical year – the time between successive vernal equinoxes. At that moment, the sun’s position in the sky is exactly where the ecliptic (the plane of the solar system and the path that the planets take as they move through the constellations) crosses the celestial equator (the projection of the Earth’s own equator onto the celestial sphere). Straddling the celestial equator, the sun splits its time exactly between the day side and the night side of the Earth. It returns to that place again in roughly 365.24219 days. Roughly.

Now you can see where those alternating “divisible by 4, 100 and 400” leap year rules originate.

Making up the differences

At the end of 365 days, there are still 0.24219 days (just shy of six hours) to go before Earth gets back to the equinox line.

After four years, however, this fractional 0.24219 of a day adds up to 0.96876, which is pretty close to one full day. If we were using only a 365-day calendar, the stars, and more importantly the months, corresponding to the seasons – crucial for agricultural societies – would slip behind. This was apparent to the Romans in the first century, as well as to the Olmecs and the Maya on the other side of the world.

Thus decreed Julius Caesar in 46 B.C.: that every four years an extra day would be added to February. It was called the Julian calendar. But adding one day every four years, in order to make up for that 0.96876 of a day in orbital spare change, is overcompensating. Caesar’s “every four” leap year prescription adds 0.03124 of a day too much. This makes the Julian calendar run fast by just over 600 seconds per year.

Exception after exception: Christopher Clavius, in a line engraving by E de Boulonois. Wellcome Trust, CC BY

Like with the spare coin jar in our house, small change like that takes a while to add up. It wasn’t until the age of Pope Gregory XIII, in 1582, that this mismatch was becoming a problem. After consultation, presumably with God, but particularly with his astronomer, Christopher Clavius, the pope adopted Clavius’ clever solution.

The Julian calendar runs fast by 0.03124 of a day every four years; multiply both sides by 100, and see an excess of about three days after 400 years. Clavius’ solution was to make centuries exceptions – but that would lose too much, four days in 400 years, not three. So Clavius added one back, once every 400 years, starting in 1600.

This Gregorian calendar, which we use today, has the following rules:

  • Every year divisible by 4: add February 29
  • Every century (1800, 1900, 2000, 2100): do not add February 29
  • Every century divisible by 400: add February 29

Still finer measurements

Even with this refinement, there is still orbital change left over. But now we are talking about temporal shavings that are quite small. At this level of precision, other wobbles in the relation of the Earth’s rotational period (the day) and its revolution period (the year) have to be taken into account.

When a leap second is added, digital clocks tick past 23:59:59 but don’t go directly to 00:00:00. Twid

Keeping track of minute effects like this is the job of the International Earth Rotation and Reference Systems Service, which controls the addition (or deletion) of leap seconds. For example, a second was added to Coordinated Universal Time by the service on June 30, 2015, due largely to the slowing of the Earth’s rotation by the gravitational pull of the moon.

There are other sources of calendar slip: the 8.9 magnitude earthquake that triggered the Japanese tsunami on March 11, 2011, for example, shifted the planet’s mass distribution enough to decrease the length of a day by 1.8 microseconds. This will add up to about a second after 1,500 years.

Using that ‘extra’ time

Personally, I think we should make February 29, leap day, a global holiday. It should be considered a gift to ourselves, like taking that accumulated spare change to the grocery store coin-counting machine, and trading it for some easier-to-spend bills. It should be a day of celebration, a reward for saving that quarter of a day over the last four years, to be spent on something frivolous. Or it could be a special day to realign our sense of hourly routines, weekly trash pickups, the race to fulfill monthly quotas, to the celestial schedule.

Without that extra day every fourth year, our ancient friends would begin to miss their annual appointments, and start to fall behind in wishing us prompt birthday greetings, like forgetful Facebook friends. Without February 29, roughly, every four years, the “constant stars” would cease to be constant.

ooOOoo

So there! Now you know!

You all spend this extra day peacefully and happily.