ENV100Y5 Lecture Notes - Lecture 26: January 30, Radiative Forcing, Greenhouse Effect
69
ENV100Y5 Full Course Notes
Verified Note
69 documents
Document Summary
Recent climatic change and human influences on climate. Ways we can respond to climate change. To u(cid:374)dersta(cid:374)d (cid:272)li(cid:373)ati(cid:272) (cid:272)ha(cid:374)ge, (cid:449)e (cid:374)eed to u(cid:374)dersta(cid:374)d earth(cid:859)s e(cid:374)erg(cid:455) (cid:272)(cid:455)(cid:272)le. We use systems process to see how materials move around - also see how energy moves around. Earths energy cycle: sources/input: solar energy = 99. 986% Most amount of energy most important. Source: nuclear fusion core of sun: tidal energy = 0. 002% Manifests itself in various ways: terrestrial energy = 0. 012% Comes from inside of the earth with many sources. Earths energy cycle: storage reservoirs: atmosphere and clouds, land and soil rocks, trees, rivers, etc, biosphere mainly in plants (primary producers, ocean, cryosphere frozen parts of hydrosphere (glaciers, ice, etc. ) U(cid:374)less it(cid:859)s at a(cid:271)solute 0, there is heat e(cid:374)erg(cid:455) i(cid:374) i(cid:272)e at a (cid:448)ery low level. Consists of ice caps, glaciers, etc: fossil fuels. Earths energy fluxes: fluxes and processes (incoming: mostly comes in from sun. Direct heating of land, soil, ocean, and cryosphere.
