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Geoengineering

Environment
Crushed Basalt Dissolves in the Topsoil. Getting the Carbon to the Ocean Is the Hard Part
A tractor spreads crushed basalt across a field, and a number appears in a ledger: so much carbon dioxide, removed. The chemistry behind that number is textbook. Rain and soil acid attack the rock,…
By Olga Schmidt5 days ago5 min read
Environment
Brightening Clouds to Cool the Planet Could Warm Mid-Eastern North America in Winter
The case for cooling the planet deliberately rests on a reassuring piece of arithmetic. Reflect a little more sunlight back into space, and the global average temperature comes down. The arithmetic…
By Steven Kasten6 days ago4 min read