GEOG 141 Lecture Notes - Lecture 11: Ice Core, Greenhouse Gas, Greenhouse And Icehouse Earth
6 Mar 2018
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Document Summary
Climate change is going to result in more extreme weather conditions, ie longer and worse droughts and more dramatic rainstorms. Most climate models for this area, the amount of water we"re getting isn"t changing, just how its distributed (more rain, less snow). This means trouble for storage of winter snow for use in the summer. Climate change better describes the future, its changing. Global warming implies everything gets warmer which isn"t true. ie snowstorms in new york. How do we know what we know: past climate change (pre-instrumental, reconstructed, present climate change (instrumental period) Climate proxy is a way to look at some line of evidence that is tied to temperature (climates of the past) iclicker 2: d. Depending on the type of evidence, we get a different time scale. Dendrochronology (tree ring analysis: 100s to 1000s of years, looking at tree rings, the oldest tree is 5,000 years old and longest chronology.
