So much robusta coffee - the instant type in jars - is being produced, that more and more forests are being cleared to make way for coffee plantations.
Problem is, the land in Indonesia where most coffee beans are grown is home to the world's most endangered animals.
Between 1996 and 2001, 28% more land was cleared to make way for coffee growing, says a report by the Wildlife Conservation Society.
Experts say numbers of tigers, rhinos and elephants are dropping fast because they are losing so much of their habitat as a result.
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