Alexander von Humboldt was a scientist with the means and fame to change how Europe thought about nature. Learn why he's sometimes called the first ecologist in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/oceanography/alexander-von-humboldt-and-humboldt-current.htm

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10:07

How Did the Great Stink of London Work?
12:10