Jatropha Will Not Save Us

People still want more and more biofuels, despite the fact that these crops often commandeer land used for food production, which pushes food crops into rainforests, and we know how that turns out.

Just a year ago, reports SciDevNet, a Central American shrub called jatropha curcus was being heralded as the Earth's saving grace. The seeds of the plant produce a diesel-like oil that many predicted would power planes and basically save the world at the same time as pulling millions in the developing world out of poverty.

Some speculated that the booming new industry would spark investments of up to $1 billion a year. The plant was for obvious reasons widely known as the "wonder weed."

One of the main advantages of jatropha is that it can grow in very dry conditions. At least that's what everybody said. However, according to the Green Inc. blog at the New York Times, a June study in the American Proceedings of the National Academy of Sciences found that jatropha was one of the least water-efficient biofuels, comparing only to rapeseed in its thirst. How was that little detail overlooked?

As if that stumbling block weren't enough, according to Green Inc., a report by an environmental and human rights NGO Envirocare, leaked to The East African newspaper last week, tells how the trade in this plant is causing upheaval in Tanzania. Farmers and food crops are being displaced by biofuel production, and water is being consumed at an alarming rate.

Biofuels investors have galloped ahead of the plant science and the community-based planning needed to productively make such sweeping agricultural changes. The journal Nature concludes that we need to go back to the drawing board with some basic research on the wonder weed before this little shrub is going to save anybody at all.

Photo courtesy of treesftf on flickr