Australian news, and some related international items

With “net zero 2050” and 1.5°C in same breath, Glasgow reeks of cognitive dissonance

Glasgow will not get close to pledges to halve emissions by 2030, and any reputable climate scientist will say that means warming will shoot past 2°C. The post With “net zero 2050” and 1.5°C in same breath, Glasgow reeks of cognitive dissonance appeared first on RenewEconomy.

With “net zero 2050” and 1.5°C in same breath, Glasgow reeks of cognitive dissonance — RenewEconomy  So far most of the media coverage and advocacy at COP26 has been poor andseverely misinformed. One after another politicians, business leaders, journalists and NGO advocates talk about “net zero 2050” and the 1.5°C Paris goal in the same breath, and get away with it. This gross underestimation of the climate condition is utterly delusional, and very few seem to be calling it out.

“Net zero 2050” (NZ2050) is a con, as this blog has reported over and over again, as did this Breakthrough report. Central bankers have NZ2050 scenarios in which fossil fuels constitute 50% of primary energy use in 2050. When the Murdoch media endorses the NZ2050 climate goal, you know it is the problem and not the answer. 2050 is so far away it’s a reason for procrastination. Judging by the G20 outcome, even NZ2050 and a coal phase-out may not pass muster in Glasgow. China is on net zero by 2060 and India on net zero by 2070.Current climate models are not capturing all the risks, including the stalling of the Gulf Stream, polar ice melt and the uptick in extreme weather events.

Carbon dioxide and methane release from deep permafrost are not routinely included in climate models; Climate models do not account well for increased warming due to loss of Arctic sea-ice: “Losing the reflective power of Arctic sea ice will advance the 2ºC threshold by 25years”; and rhe IPCC 2021 report gives “a best estimate of equilibrium
climate sensitivity of 3°C” but including factors such as “slow”
feedbacks (carbon stores) and albedo changes (reflectivity), warming may be
as high as 5–6°C for a doubling of carbon dioxide for a range of climate
states between glacial conditions and ice-free Antarctica.

 Renew Economy 3rd Nov 2021

November 4, 2021 - Posted by | Uncategorized

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