3.2 Mass Extinctions and the 6th Extinction

IB Environmental Systems & Societies: 3.2 Mass Extinctions and the 6th Extinction

There have been five major mass extinction events during the Earth"s geological history. Students need to understand the type of environmental changes which led to these extinction events and what were the consequences for biodiversity. I will be emphasising the similarity between current changes in carbon dioxide levels, ocean acidification and some of the past mass extinctions.It is important to discuss the process...

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