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1 .This is Scientific American 60-Second Science. I'm Cynthia Graber. Got a minute?
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2 .Here's a good news/bad news story.
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3 .Scientists have been able to dramatically increase the yields for oil palm trees, a crop with a global market.
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4 .Oil palms grow in the tropics, so that should mean more profit from less land, helping to protect tropical forests.
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5 .Good news, right?
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6 .But in an article in the journal Science, researchers show how the increased yield could in fact lead to even more tropical destruction.
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7 .Because as the value of palm oil planting increases, farmers could want to plant on even greater tracts of land.
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8 .Which is bad news.
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9 .Also, a future increase in supply could eventually lead to a decrease in prices.
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10 .So palm oil could out-compete, say, rapeseed oil from Canada.
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11 .Which would lead to an even higher demand for palm oil.
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12 .Which is worse news.
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13 .In addition, current low yields and high production costs means oil palm is not planted much in Africa and South America.
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14 .But higher yields could make oil palm attractive to planters in those regions, leading to even more tropical forest destruction.
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15 .To prevent these developments, the researchers write that policy makers need to be aware of and plan for the unintended negative consequences of technical advances.
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16 .Which would be good news.
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17 .Thanks for the minute, for Scientific American 60-Second Science. I'm Cynthia Graber.
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