ENV100Y5 Chapter Notes - Chapter 15: Photosynthesis, Atmospheric Circulation, Cryosphere
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ENV100Y5 Full Course Notes
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Document Summary
Impacts that are global in extent: cumulative or synergistic effects of local/regional actions. Impacts that are long-lasting or potentially permanent: atmospheric change, stratospheric ozone depletion, global climatic change. Global change affects the global commons : common property resources are collectively owned or communally accessed or utilized. The tragedy of the commons: global commons: outside national jurisdiction. Three natural factors exert more influence on climate than all others. The sun supplies most of the planet"s energy. The atmosphere absorbs incoming and outgoing solar radiation. The oceans shape climate by storing and transporting heat and moisture. Also to be considered: the role of human activity. Sun and atmosphere keep earth warm: sun (without it earth frozen and dark) and atmosphere (without it earth much colder) and ocean ( shapes climate by storing and transporting heat and moisture) Solar energy powers life: the sun radiates energy, mainly in the shorter wavelength portions of the electromagnetic spectrum.
