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Earth Day: Scientists say 75 percent of known fossil fuel reserves must stay in ground

Leading scientists and economists release statement to mark Earth Day in which they urge leaders to keep to commitments to avoid dangerous global warming

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The urban jungle -- What happens when animals go wild in the city

Perching on the side of an old power station chimney with St Paul’s Cathedral to the north and the Shard, Europe’s tallest building, to the east is not where you might expect to glimpse the world’s fastest bird. Yet Tate Modern, and London landmarks including Battersea Power Station and the Houses of Parliament, have been home for several years to peregrine falcons. A surprising flash of the wild in the heart of the city, the powerful bird of prey is also a specialised hunter of feral pigeons, considered such an urban pest that in 2003 a ban was imposed on feeding them in Trafalgar Square.

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A 'demitarian' diet: Halving meat and dairy consumption could slash farming emissions

Greenhouse gas emissions from agriculture would be cut by 25-40% if Europeans cut their meat and dairy consumption by half, according to a UN report.

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Tax meat to cut greenhouse gas emissions, say scientists

Meat should be taxed to encourage people to eat less of it, so reducing the production of global warming gases from sheep, cattle and goats, according to a group of scientists.

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Scientist uses supercomputer to model the climate of Middle Earth

Climate skeptics regularly work themselves into a lather dismissing mainstream climate science as fantasy – but for once they have a point.

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Environmental Defense Fund: Naomi Klein 'waging ideological war' instead of tackling climate change

Naomi Klein is more interested in "waging ideological warfare" than tackling climate change, according to one of America's biggest green groups.

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Estonia launches national car-charging network

165 charging points around the country will use direct current to charge cars in less than 30 minutes

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Ecologists: Hedgehog population in dramatic decline

Once common sightings of hedgehogs are becoming rare in the UK's gardens, parks and hedgerows, say ecologists

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German diners feast on 'trash' to cut waste

Two socially-aware Berlin women with a culinary flair have given "leftovers for dinner" a fresh twist by organising communal suppers conjured up from unsold food foraged from markets.

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Newly discovered slow loris already at risk of extinction

The 'teddy bear' face of the nocturnal Nycticebus kayan, discovered in Borneo, makes it attractive for illegal poaching

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Facebook's carbon footprint smaller than Google's

Facebook has, for the first time, revealed the carbon footprint of its operations and its more than 900m users' likes, photo albums and status updates.

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San Francisco plans to ban Apple over green credentials

City officials may be banned from buying the computers after the technology company pulled out of a green scheme

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Earth Hour to be watched over from space as the lights go out

The event will have a live commentary from space as landmarks from the Eiffel Tower to the Sydney Opera House switch off their lights

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