2°C or not 2°C–that is the question

Watts Up With That?

This note by The Viscount Monckton of Brenchley uses methods and data exclusively from mainstream climate science to constrain the interval of 21^st-century global warming.

Graphic from Jonathan Koomey via slideshare

In 2009 the Copenhagen climate summit asserted, on little evidence, that global warming of 2 C° compared with pre-industrial temperature [equivalent to 1.1 C° above today] would be dangerous. The UK Climate Change Committee said in 2015: “If we make no efforts to cut global use of fossil fuels, global warming is likely to reach between 2-7°C this century with further warming beyond.” A Science editorial in July 2015 said:

“Let’s act now, to save the next generations from the consequences of the beyond-two-degree inferno.”

Equilibrium climate sensitivity ΔT to a CO₂ doubling is given by (1),

ΔT = λΔF (1 – λf ) ^–1, (1)

where the Planck…

Ursprünglichen Post anzeigen 466 weitere Wörter