From NOT A LOT OF PEOPLE KNOW THAT
MAY 6, 2023
By Paul Homewood
This post came up on my Facebook today:
When you click on SEE WHY, this comes up:
And this is the story the Facebook censors don’t want you to see:
Quite why Facebook would want to rely on the USA Today for its source of science is a mystery. Perhaps they should have actually checked what real scientists are saying:
The Antarctic continent has not warmed in the last seven decades, despite a monotonic increase in the atmospheric concentration of greenhouse gases.
In this paper, we investigate whether the high orography of the Antarctic ice sheet (AIS) has helped delay warming over the continent. To that end, we contrast the Antarctic climate response to CO2-doubling with present-day orography to the response with a flattened AIS. To corroborate our findings, we perform this exercise with two different climate models. We find that, with a flattened AIS, CO2-doubling induces more latent heat transport toward the Antarctic continent, greater moisture convergence over the continent and, as a result, more surface-amplified condensational heating. Greater moisture convergence over the continent is made possible by flattening of moist isentropic surfaces, which decreases humidity gradients along the trajectories on which extratropical poleward moisture transport predominantly occurs, thereby enabling more moisture to reach the pole. Furthermore, the polar meridional cell disappears when the AIS is flattened, permitting greater CO2-forced warm temperature advection toward the Antarctic continent. Our results suggest that the high elevation of the present AIS plays a significant role in decreasing the susceptibility of the Antarctic continent to CO2-forced warming.
I’ll post this on Facebook and see how long it takes for the censors to strike!
via Watts Up With That?
May 8, 2023 at 04:49PM