1 Jatropha: the Biofuel that Bombed Seeks a Path To Redemption
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Earlier this century, jatropha was hailed as a "wonder" biofuel. A simple shrubby tree native to Central America, it was extremely promoted as a high-yielding, drought-tolerant biofuel feedstock that might grow on degraded lands across Latin America, Africa and Asia.
A jatropha rush occurred, with more than 900,000 hectares (2.2 million acres) planted by 2008. But the bubble burst. Low yields led to plantation failures almost everywhere. The consequences of the jatropha crash was polluted by accusations of land grabbing, mismanagement, and overblown carbon reduction claims.
Today, some researchers continue pursuing the evasive promise of high-yielding jatropha. A comeback, they say, depends on breaking the yield problem and resolving the harmful land-use problems intertwined with its original failure.
The sole staying big jatropha plantation remains in Ghana. The plantation owner declares high-yield domesticated varieties have actually been attained and a new boom is at hand. But even if this resurgence falters, the world's experience of jatropha holds essential lessons for any appealing up-and-coming biofuel.
At the beginning of the 21st century, Jatropha curcas, a simple shrub-like tree native to Central America, was planted throughout the world. The rush to jatropha was driven by its guarantee as a sustainable source of biofuel that might be grown on deteriorated, unfertile lands so as not to displace food crops. But inflated claims of high yields fell flat.

Now, after years of research and advancement, the sole staying big plantation concentrated on growing jatropha remains in Ghana. And Singapore-based jOil, which owns that plantation, declares the jatropha return is on.

"All those business that failed, embraced a plug-and-play design of scouting for the wild ranges of jatropha. But to commercialize it, you need to domesticate it. This is a part of the process that was missed out on [throughout the boom]," jOil CEO Vasanth Subramanian told Mongabay in an interview.

Having found out from the mistakes of jatropha's previous failures, he states the oily plant might yet play a key function as a liquid biofuel feedstock, lowering transport carbon emissions at the worldwide level. A brand-new boom could bring fringe benefits, with jatropha also a potential source of fertilizers and even bioplastics.

But some researchers are hesitant, noting that jatropha has actually already gone through one hype-and-fizzle cycle. They caution that if the plant is to reach full capacity, then it is necessary to gain from previous errors. During the very first boom, jatropha plantations were hindered not just by poor yields, but by land grabbing, logging, and social issues in countries where it was planted, including Ghana, where jOil runs.

Experts likewise recommend that jatropha's tale uses lessons for scientists and entrepreneurs checking out appealing brand-new sources for liquid biofuels - which exist aplenty.

Miracle shrub, major bust

Jatropha's early 21st-century appeal stemmed from its guarantee as a "second-generation" biofuel, which are sourced from lawns, trees and other plants not stemmed from edible crops such as maize, soy or oil palm. Among its several supposed virtues was a capability to flourish on abject or "limited" lands