Carbon dioxide in the atmosphere has reached a new record after another year in which there was little sign of a reduction in global emissions, according to the World Meteorological Organisation. The WMO, a UN body, said in its annual report that concentrations of CO2 in the atmosphere last year hit 407.8 parts per million, only three years after passing a symbolic barrier at 400ppm. The increase last year was similar to that of the year before and, despite efforts to combat emissions, above the average over the decade. This means that there is now more CO2 in the atmosphere than at any time since three million years ago, when sea levels were between 10m and 20m higher and the temperature was 2-3C higher. Before the Industrial Revolution, atmospheric CO2 was at 280ppm.
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Bill McKibben: The New Climate Math: The Numbers Keep Getting More Frightening. Scientists keep raising ever-louder alarms about the urgency of tackling climate change, but the world’s governments aren’t listening. Yet the latest numbers don’t lie: Nations now plan to keep producing more coal, oil, and gas than the planet can endure. Plans by the world’s governments to produce 120 percent more coal and gas and oil by 2030 than the planet can burn and have even half a hope of meeting the Paris climate targets. The new report, which emerged last week from the Stockholm Environment Institute (SEI), is one of the most important pieces of research in years. What it means is, the world is producing endlessly more coal and oil and gas than safety allows. The SEI report is the most damning documentation of our plight yet, and it powerfully makes the case that we should be working at least as hard to cap supply as to depress demand. We have plenty of tools, from limiting subsidies to just outright banning new exploration and development.
Yale Environment 25th Nov 2019 read more »