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Global Warning: Kangaroos Pay the Price (2009)
Even with the best intentions, when humans intervene in the workings of nature, the combined effects of ignorance and arrogance can lead to great harm, and this episode of Global Warning offers five sobering examples.
When sheep are introduced to Australia, kangaroos pay the price. As disastrous as, say, the Exxon-Valdez oil spill was, there is a more damaging and permanent kind of oil spill going on every day. The plan to import wild African queen bees to invigorate honey production in Brazil went badly astray when the highly aggressive hybrids escaped.
The use of pesticides to combat locusts is so heavy handed that the weight of chemicals used on the locusts is greater than the weight of the locusts themselves. And killing elephants to save them – was it all just a misunderstanding?