Sky Day Activity #11.
How do we know it’s us warming the world (and not something else?)
An important question that deserves an honest answer. Today we know a great deal about the ‘climate forcing agents’ that have changed earth’s climate in the distant past and are doing so now. Have your students study this interactive graph published in Bloomberg Businessweek. It uses findings from NASA’s Goddard Institute for Space Studies to show how much different factors, natural and industrial, have contributed to global warming between 1880 and 2014. Then open things up for discussion. Did anything surprise anyone?