Energy crops may bring food shortages and increase poverty, says UN
The global rush to switch from oil to energy derived from plants will drive deforestation, push small farmers off the land and lead to serious food shortages and increased poverty unless carefully managed, says the most comprehensive survey yet completed of energy crops.
The United Nations report, compiled by all 30 of the world organization's agencies, points to crops like palm oil, corn, sugar cane, soya and jatropha. Rich countries want to see these extensively grown for fuel as a way to reduce their own climate changing emissions.
But the UN urges governments to beware their human and environmental impacts, some of which could have irreversible consequences.
Global production of energy crops is doubling every few years, and 17 countries have so far committed themselves to growing the crops on a large scale.
On the positive side, the UN says that the crops have the potential to reduce and stabilize the price of oil, which could be very beneficial to poor countries. But it acknowledges that forests are already being felled to provide the land to grow vast plantations of palm oil trees.
Environment groups argue strongly that this is catastrophic for the climate and potentially devastating for forest animals like orangutans in Indonesia.
The UN warns: "Where crops are grown for energy purposes the use of large scale cropping could lead to significant biodiversity loss, soil erosion and nutrient leaching. Even varied crops could have negative impacts if they replace wild forests or grasslands."
But the survey's findings are mixed on whether the crops will benefit or penalize poor countries, where most of the crops are expected to be grown in the future. One school of thought argues that they will take the best land, which will increase global food prices. This could benefit some farmers but penalize others and also increase the cost of emergency food aid.
"At their worst, biofuel programs can also result in a concentration of ownership that could drive the world's poorest farmers off their land and into deeper poverty," the survey says.
According to the report, the crops could transform the rural economy of rich and poor countries, attracting major new players and capital, but potentially leading to problems.
"Large investments are already signaling the emergence of a new bio-economy, pointing to the possibility that still larger companies will enter the rural economy, putting the squeeze on farmers by controlling the price paid to producers and owning the rest of the value train," it says.
The report also says the crops are not guaranteed to reduce greenhouse gas emissions. Producing and using biofuels results in some reductions in emissions compared to petroleum fuels, it says, but this is provided there is no clearing of forest or peat that store centuries of carbon.
"More and more people are realizing that there are serious environmental and food security issues involved in biofuels. Climate change is the most serious issue, but you cannot fight climate change by large scale deforestation," said Jan van Aken, of Greenpeace International in Amsterdam.