Staying with the terrible news that we are now above 400 ppm atmospheric CO2.
If there is anything of comfort to be drawn from the news that we are above 400 ppm CO2 it is that the mainstream media are running with it. I shall focus on the reportage from the BBC News website.
First, there was the news of the passing of that “symbolic mark”.
10 May 2013Last updated at 11:39 ET
Carbon dioxide passes symbolic mark
Key measurements are made on top of the Mauna Loa volcano
Carbon dioxide levels in the atmosphere have broken through a symbolic mark.
Daily measurements of CO2 at a US government agency lab on Hawaii have topped 400 parts per million for the first time.
The station, which sits on the Mauna Loa volcano, feeds its numbers into a continuous record of the concentration of the gas stretching back to 1958.
The last time CO2 was regularly above 400ppm was three to five million years ago – before modern humans existed.
Scientists say the climate back then was also considerably warmer than it is today.
Carbon dioxide is regarded as the most important of the manmade greenhouse gases blamed for raising the temperature on the planet over recent decades.
Then David Shukman, Science editor BBC News added this further background, that I am going to republish in full:
David Shukman
Near the summit of the Mauna Loa volcano, the carbon dioxide monitors stand amid one of the world’s remotest huddles of scientific instruments. To reach them you have to leave the steamy Hawaii coast and climb through barren lava-fields.
At the top, above 11,000ft, the air is thin and the sun piercing. During my visit, I watched rain clouds boiling in the valleys below me. Charles David Keeling chose this otherworldly spot because the air up here is neither industrial nor pristine; it is “well-mixed” which means it can serve as a useful guide to changes in the atmosphere.
Despite their global significance, the devices he installed back in 1958 do not look impressive. But he battled bureaucratic objections to fund them and his legacy is the longest continuous record of a gas, linked to much of global warming, that just keeps rising.
Scientists are calling on world leaders to take action on climate change after carbon dioxide levels in the atmosphere broke through a symbolic threshold.
Daily CO2 readings at a US government agency lab on Hawaii have topped 400 parts per million for the first time.
Sir Brian Hoskins, the head of climate change at the UK-based Royal Society, said the figure should “jolt governments into action”.
China and the US have made a commitment to co-operate on clean technology.
But BBC environment analyst Roger Harrabin said the EU was backing off the issue, and cheap fossil fuels looked attractive to industries.
The laboratory, which sits on the Mauna Loa volcano, feeds its numbers into a continuous record of the concentration of the gas stretching back to 1958.
‘Sense of urgency’
Carbon dioxide is regarded as the most important of the manmade greenhouse gases blamed for raising the temperature on the planet over recent decades.
Human sources come principally from the burning of fossil fuels such as coal, oil and gas.
Ministers in the UK have claimed global leadership in reducing CO2 emissions and urged other nations to follow suit.
But the official Climate Change Committee (CCC) last month said that Britain’s total contribution towards heating the climate had increased, because the UK is importing goods that produce CO2 in other countries.
Rest of that news article is here. But I can’t resist the picture and quote from Professor Sir Brian Hoskins, director of the Grantham Institute for Climate Change at Imperial College London.
Sir Brian Hoskins said a greater sense of urgency was needed
“A greater sense of urgency was needed.” I’m going to be emotional! Frankly, those wishy-washy words are pathetic.
We need the sort of words that George Monbiot penned a few days ago. Those I will share with you tomorrow.
Learning from Dogs 