Earth warming to climate tipping point, warns study

Earth warming to climate tipping point, warns study

by Mark Kinver, BBC News: Science & Environment

A warmer world will release vast volumes of carbon into the atmosphere, potentially triggering dangerous climate change, scientists warn.

Writing in journal Nature, they project that an increase of 1C (1.8F) will release an additional 55 billion tonnes of carbon into the atmosphere by 2050.

This could trigger a “positive feedback” and push the planet’s climate system past the point of no-return.

Previous assessments have not taken carbon released by soil into account.

In their Nature paper, an international team of scientists said that the majority of the Earth’s terrestrial store of carbon was in the soil.

They warned that as the world warmed, organisms living in the planet’s soils would become more active, resulting in more carbon being released into the atmosphere – exacerbating warming.

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