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BBC - Future - Jumbo-gardeners: How elephants affect weather
"The tropical rainforests of Africa and Asia play a crucial role in keeping our planet healthy. They moderate our climate, absorb the carbon we produce, and act as a major source of atmospheric moisture – which can fall as rain many miles away.
In this film, The Nature Conservancy’s lead scientist Dr M Sanjayan, Dr Valerie Kapos of the UN Environment Programme, and tropical field biologist and conservationist Dr Ian Redmond reveal the crucial role that elephants play in keeping these forests strong and resilient, and how elephants are the most important player when it comes to the diversity of tree species in the rainforest."