Glass microspheres won’t save Arctic sea ice

A proposal to cover Arctic sea ice with layers of tiny hollow glass spheres about the thickness of one human hair would actually accelerate sea-ice loss and warm the climate rather than creating thick ice and lowering the temperature as proponents claim. Sea ice, by reflecting the majority of the sun’s energy back to space, helps regulate ocean and air temperatures and influences ocean circulation. Its area and thickness is of critical importance to Earth’s climate.

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