Protect Arctic from 'dangerous' climate engineering, scientists warn

Controversial approaches to cooling the planet are unlikely to work, according to dozens of polar scientists.

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These polar "geoengineering" techniques aim to cool the planet in unconventional ways, such as artificially thickening sea-ice or releasing tiny, reflective particles into the atmosphere.

They have gained attention as potential future tools to combat global warming, alongside cutting carbon emissions.

But more than 40 researchers say they could bring "severe environmental damage" and urged countries to simply focus on reaching net zero, the only established way to limit global warming.

Geoengineering - deliberately intervening in the Earth's climate system to counter the impacts of global warming - is one of the most controversial areas of climate research.