Pollution from energy generation is an enormous problem that will probably require an expensive solution
-- which, thankfully, billionaires like Bill Gates are willing to fund. However, we're already spending billions on energy R&D, but progress seems slow when the doomsday clock appears to be "catastrophically" close to midnight. The option of removing carbon dioxide
from the atmosphere might give us some additional time, though, even if global-scale geoengineering sounds like it might have its own unintended side effects.
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