GEOL 150: Midterm 2 - Anthropocenic Global Warming

Look at the figure #.b, we see that the black curve is always within the orange envelope. This means:

With all forcings included, GCMs are capturing the observed temperature history.

The bottom panel of the figure shows simulated and observed temperature changes in Antarctica since 1950 (not enough observations prior to date). The black curve appears within nearly every envelope. This means:

Antarctica’s observed warming cannot presently be attributed one way or another.

What are some examples of anthropological aerosols?

Some visible signs of anthropological aerosols are ship condensation lines and black carbon or soot

What are some examples of natural forcings?

solar, volcanic, orbital, and tectonics

Examples of anthropogenic forcings

greenhouse gases, aerosols, land use