ANT-4340 Lecture Notes - Lecture 3: Astronomical Object, Micropaleontology, Milankovitch Cycles
24 Jan 2017
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Document Summary
It helps us understand how the uniformitarian principle operates. Helps with the prediction of future climate changes. Can be correlated with the archaeological record to understand human biocultural adaptations. Provides a way of understanding the ranges that different species can tolerate how biomes have changed thru time. Global warming due to concentrations of greenhouse gasses in the atmosphere. Would like to see (cid:1007)(cid:1009)(cid:1004)pp(cid:373), (cid:271)ut (cid:449)e"(cid:448)e (cid:373)o(cid:448)ed past. 8 degrees c of warming since 1880 (1. 44 f) that. As solar radiation hits the earth, 30% of it bounces off the clouds and reflective surfaces like ice or snow; 70% passes through. Greenhouse gasses trap infrared radiation from the sun, preventing it from escaping the earth"s atmosphere. Previously, input and output were balanced so we remained a constant temp of 59 f. Co2 is not the only problem, but the biggest problem.
