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The first thing to point out is that "no statistically significant warming" does not mean that there has been no warming, essentially it just means that there hasn't been enough warming to rule out the possibility that there has been no warming. If that sounds counter-intuitive, it is because it is, but that is the way frequentist statistical hypothesis ...


11

Very few people disagree with the basic fact that the greenhouse gas CO2 warms the climate, but without some kind of positive feedback mechanism, it doesn’t add very much: around 1°C-1.2°C per doubling of CO2. The statement is correct, but very misleading. In the absence of the climate system's feedbacks, the climate sensitivity is 1 to 1.2 deg C for each ...


9

To begin with, the question ought to be reworded as "Can simple, old models of the effect of CO₂ predict global mean surface temperature better than complex modern climate simulations?". GMSTs can be modelled quite well by comparatively simple models of global climate, using physics that has been well understood for many years (see the primers by ...


7

That 78 million figure out of 128 million is consistent with the 40% to 70% worst case estimates for coronavirus infection rates. PolitiFact rates this as half true, not so much because it's half true (e.g., credible sources here, here, and many other places), but because "that is a projection, and other projections vary." These are worst case projections ...


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