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This is Scientific American 60 Second Science. I'm Cynthia Graber. Got a minute?

Here's a good news, bad news story.

Scientists have been able to dramatically increase the yields

for oil palm trees, a crop with the global market.

Oil palms grow in the tropics, so that should mean more profit

from less land helping to protect tropical forests. Good news, right? But in an article in the journal

Science, researchers show how the increased yield could in fact lead to even more tropical

destruction because as the value of palm oil planting increases, farmers could

want to plant on even greater tracts of land, which is bad news.

Also, a future increase in supply could eventually lead to a decrease in prices,

so palm oil could out-compete, say, rapeseed oil from Canada,

which would lead to an even higher demand for palm oil,

which is worse news.

In addition, current low yields in high production costs

...