ENVS 3010 Lecture Notes - Lecture 2: Pleistocene

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Lecture objectives: know the definition of climate change, be able to put current climate change in context by having an idea of the temperature history of the earth, identify the main natural causes for climate variability. The goal of this lecture was to get a background understanding of the history of temperature on earth and the natural causes for climate variability to debunk some of the common misconceptions and arguments against climate change. Additionally, we must have an understanding of the natural causes of climate variability before considering human influences. The definition of climate change varies depending on the source, however the example provided in lecture includes the most important points. Typically, the timeframe for comparison is 30 years. Thus, one off year where the average temperature is very cold does not provide evidence against climate change. When looking at visualizations of climate change both for global average temperature as well as.

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