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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More farmed salmon will not necessarily bring better food security, say researchers.
Companyโs โfaith and philosophy partnershipsโ lead sought โmoral voicesโ for future AI models at the Alliance for Responsible Citizenship conference.
