So You Want to Geoengineer the Planet? Beware the Hurricanes

WIRED | 11/14/2017 | Matt Simon
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Every country on Earth, save for cough one, has banded together to cut emissions and stop the runaway heating of our only home. That’s nearly 200 countries working to keep the global average temperature from climbing 2 degrees Celsius above pre-Industrial Revolution levels.

Phenomenal. But what if cooperation and emissions reduction aren’t enough? Projections show that even if all those countries hit their Paris Agreement emissions pledges, the world will still get too warm too fast, plunging us into climate chaos. So, if we can’t stop what we’ve set in motion, what if we could just cool the planet off by making it more reflective—more like a disco ball than a baseball?

Geoengineering - Scientists - Materials - Stratosphere - Space

Actually, we could. It’s called solar geoengineering. Scientists could release materials into the stratosphere that reflect sunlight back into space, kind of like slapping giant sunglasses on Earth. You could theoretically do this with giant space mirrors, but that would require a mountain of R&D and money and materials. More likely, scientists might be able to steal a strategy from Earth itself. When volcanoes erupt, they spew sulfur high in the sky, where the gas turns into an aerosol that blocks sunlight. If scientists added sulfur to the stratosphere manually, that could reflect light away from Earth and help humanity reach its climate goals.

It's not that simple, though: The massive Tambora eruption of 1815 cooled the Earth so much that Europe suffered the “year without summer,” leading to extreme food shortages. And in a study published today in the journal Nature, researchers examine a bunch of other ways a blast of sulfur could do more harm than good.

Group - Seeding - Storms - North - Atlantic

Specifically, the group looked at how sulfur seeding could impact storms in the North Atlantic. They built models showing what would happen if they were to inject sulfur dioxide into the lower stratosphere...
(Excerpt) Read more at: WIRED
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