GEOG 2030 Lecture Notes - Lecture 2: Thermosphere, Global Temperature Record, Anthropocene
13 Dec 2015
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Document Summary
Used to describe recent observed increase in global mean surface temperature. Global mean surface temperature (gmst): the variety of different temperatures on earth averaged over different places and different seasons; artificial idea; indexed by the global climate observing system (gcos) Climate change: changes in a group of weather-related variables averaged over the globe as best as possible; average increases in global mean surface temperature, precipitation patterns, storm intensity and storm frequency. 1. 5 how does driving a car lead to an increase in gmst. Earth is 33 degrees celsius warmer than it would be without an atmosphere; atmosphere acts as a greenhouse; natural, maintains a suitable habitat for life. Poor analogy for what is actually happening on earth; the reasons why a greenhouse is warmer inside and why the earth is warming are not the same. Infrared radiation from sun"s rays are reflected back, warming the atmosphere.
