WWS 350 Chapter Notes - Chapter 1: Paleoclimatology, Subtropics, Phenology
16 May 2019
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Document Summary
One of the most challenging issues for conservation in the future: preserving biodiversity in the face of climate change. Changes in climate can be reconstructed with direct measurements from land and ocean weather stations and indirect proxy methods. I. e. , tree rings and pollen and plankton from lakes and ocean sediment cores. Study samples of atmospheric gases from ice cores. High levels of greenhouse gases are correlated with warmer global temperatures. Can be caused by natural fluctuations in incoming solar radiation and chemical composition of the atmosphere. Warming of climate is likely a result of increases in anthropogenic ghg (greenhouse gas) emissions. 35% rise in atmospheric ghg concentrations since preindustrial times. Globally averaged temperature has risen ~0. 6 c over the last 50 years. Ipcc predicts global anthropogenic warming range to be 18 to 4. 0 c over the next century. Greater magnitude of warming in higher latitudes. Annual precipitation will increase in high latitudes and decrease in subtropics.
