by Robert Ellison
I don’t raise the alarm at all, but there are tipping points in the Earth system. Megafloods and megadroughts. Abrupt warming or cooling of many degrees C in years or decades. Glacials and interglacials. Solar energy driving patterns of planetary turbulence and an ice, cloud and biology response. These have always been with us. Our limited geophysical instrumental series reveal a variability that can’t be distinguished from anthropogenic warming effects (Koutsoyiannis 2020 ). So it’s happening but perhaps not quite the end of the world yet.