GEOG 040 Lecture Notes - Lecture 11: Mauna Loa Observatory, Keeling Curve, Global Dimming
13 Dec 2018
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Document Summary
Consensus of the scientific community is that climate change is happening and is caused by human behavior. Instrumental records are made using instruments that measure various climate and weather factors: compiled to create datasets. The mauna loa observatory is hawaii collects data on the parts per million of carbon dioxide in the atmosphere: called the keeling curve. Proxy records are natural data sets where the climate is recorded in the physical structure of the proxy: these held identify trends and cycles, rates of change, magnitude of changes, duration of. I. e. tree rings, ice cores, pollen, lake sediment varves changes, and extreme events going back nearly a million years. Tree rings show the environmental conditions like humidity in the thickness of the ring a tree puts on each year (1) helpful because of global tree distribution, annual formation, and age of trees.
