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.
With the Tories in the political wilderness, anti-green think tanks appear to be turning their attention to Nigel Farage’s party.
The global push for climate transparency is just getting started.
First attempt to quantify scale of “sportswashing” likely to be an underestimate, authors warn.
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