Photosynthesis: nature requires carbon dioxide
How delusional can these self-appointed weather managers get? Their ‘carbon pollution’ is a trace gas (a mere 0.04% of the atmosphere) essential to the natural world. But in their minds it’s a disaster waiting to happen, if not already happening, and so the endless hype and demands for ever more massive expenditure go on.
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Nearly 200 nations gather Monday to grapple with a question that will outlive Covid-19 and Russia’s invasion of Ukraine (says Phys.org): how does a world addicted to fossil fuels prevent carbon pollution from making Earth unliveable?
A partial answer is set for April 4 after closed-door, virtual negotiations approve a nearly 3,000-page report detailing options for drawing down greenhouse gases and extracting them from the air.
“The impacts are costly and mounting, but we still have some time to close the window and get ahead of the worst of them if we act now,” said Alden Meyer, a senior analyst at climate and energy think-tank E3G.
“This report will supply the answers as to what we need if we’re serious about getting there.”
In August 2021, the Intergovernmental Panel on Climate Change (IPCC) laid out the physical science: the pace of global warming and sea level rise, along with shifts in the frequency, duration and intensity of cyclones, heatwaves and droughts.
That was part one in a three-part assessment, the sixth since 1990.
It projected that Earth’s surface temperature will rise 1.5 degrees Celsius above preindustrial levels, perhaps within a decade.
A 1.5C cap on global warming—the aspirational goal of the 2015 Paris climate accord—has been embraced as a target by most of the world’s nations.
It’s not hard to see why: barely 1.1C of warming so far has ushered in a crescendo of deadly extreme weather across the globe.
Recently renewed national carbon-cutting commitments, however, still put us on a catastrophic path toward 2.7C of warming by 2100.
Continued here.
via Tallbloke’s Talkshop
March 21, 2022 at 04:57AM
Iowa Climate Science Education 