Further doubts atmospheric umbrella will save marine environments

We recently looked at problems with a last resort solution to counteract global warming by artificially shading the Earth from sunlight by injecting sulphur or small, reflective particles into the upper atmosphere. Now a new study from the Carnegie Institution has thrown further doubt on the effectiveness of such a proposal. Although it may lower the planet’s temperature by a couple of degrees, it would do little to stop the acidification of the world’s oceans that threatens coral reefs and other marine life.

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