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Comment by makerofspoons | Hacker News Reader

This article doesn't address what impact this would have on crop yields if less light is reaching the surface. It also does nothing to address ocean acidification, which is realy the unaddressed elephant in the room in many climate discussions.

Olivine weathering addresses both: https://projectvesta.org/

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Or the clear of forests, the rapidly decreasing biodiversity, diseases that are spreading to kill bats, trees, and bees. The rapidly increasing contamination of the ocean with plastics. The politicization of environmentalism has narrowed the focus so much. We need environmental protection on a massive scale.

There is a mention that CO2 in environment is one thing, and the temperature of the environment is another, though related.

I think Bill Gates has an opinion that we underestimate technological capabilities available for dealing with climate crisis.

Suppose we reduce solar power reaching the planet by 1%. Biosphere will get 1% reduction. How much temperature decrease we'll get and how soon?

Even with undesirable consequences another tool may be valuable to help us get where we want.

It definitely wouldn't need that much. Even blocking 1% of the sunlight would make a radical difference in the total amount of heat that hits the earth each year, but would only be equivalent to 7.2 minutes less sunlight each day on average.

As it's going right now, we're committing future generations to both CO2 removal and solar radiation management.

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