EARTHSC 2GG3 Lecture Notes - Lecture 21: Outgoing Longwave Radiation, Isaac Asimov, Global Warming

• School: Mohawk College
• Department: Earth Sciences
• Course: EARTHSC 2GG3
• Professor: John Maclachlan

Document Summary

Lecture 21, october 24, 2012 (cid:862)the saddest aspe(cid:272)t of life right (cid:374)o(cid:449) is that s(cid:272)ie(cid:374)(cid:272)e gathers k(cid:374)o(cid:449)ledge faster that so(cid:272)iet(cid:455) gathers (cid:449)isdo(cid:373). (cid:863) Isaac asimov (cid:862)we are upsetti(cid:374)g the at(cid:373)osphere upo(cid:374) (cid:449)hi(cid:272)h all life depe(cid:374)ds. (cid:863) David suzuki: the greenhouse effect and global warming, greenhouse effect depends on effectiveness in blocking outgoing long-wave radiation (heat) and abundance in atmosphere. A greenhouse heats up inside because the short-wavelength radiation incoming sunlight passes through glass but most of the longer-wave return radiation heat cannot pass through glass and is trapped inside. Car(cid:271)o(cid:374) dio(cid:454)ide a(cid:374)d other gree(cid:374)house gases i(cid:374) earth"s at(cid:373)osphere a(cid:272)t i(cid:374) a similar manner as the glass covering a greenhouse. 1. 1 greenhouse gases and the carbon cycle: carbon cycle is exchange of carbon between atmosphere, oceans, biosphere and rocks. Transportation, industrial and residential energy consumption, and land use changes. Mostly by burning fossil fuels (hydrocarbons) which generate co2.