BIO220H1 Chapter 8: climate change article
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BIO220H1 Full Course Notes
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Document Summary
The precipitation has increased in north, and south america as well as europe, but decreased in the sahel: particularly temperature increases are affected by climate change. Changes to the arctic and antarctic ecosystem instability in mountains and permafrost regions, increase in glacial lakes size. Effects on thermal structure and water quality of warming lakes. The poleward and upward shift of plants and animal ranges linked with warming. Ranges of fish and abundance due to increasing temperature. Salinity and oxygen levels being affected as well: there is a notable lack of geographic balance. Causes of change: the alteration of the energy balance of the climate system. The global greenhouse emissions have grown due to human activity. Co2 is the most important anthropogenic ghg. The levels determined from ice cores of co2, ch4, n2o are pre-industrial. Regional scale changes: warming greatest over land more in the northern hemisphere than the.
