Some say we can ‘solar-engineer’ ourselves out of the climate crisis. Don’t buy it | Ray Pierrehumbert and Michael E Mann

What could go wrong with this idea? Well, quite a lot

As we arrive at Earth Day, there is renewed hope in the battle to avert catastrophic climate change. Under newly elected president Joe Biden, the US has reasserted global leadership in this defining challenge of our time, bringing world leaders together in Washington this week to galvanize the global effort to ramp down carbon emissions in the decade ahead.

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