Producing biofuels from a fast-growing grass delivers vast savings of carbon dioxide emissions compared with petrol, a large-scale study has suggested. US researchers also found that switchgrass-derived ethanol produced 540% more energy than was required to manufacture the fuel.
One acre (0.4 hectares) of the grassland could, on average, deliver 320 barrels of bioethanol, they added.
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A summit billed as the last chance to revive global climate action faces unprecedented pressure from the food sector’s largest emitters.
Organisers offered pesticide giants and agribusiness lobby group “visibility” and “image gain” in return for financial contributions to climate summit's Agrizone.
The newspaper has been scolding the BBC for its editorial failings, while issuing a string of climate corrections.
