How well could we counter global cooling?

The earth is migrating, somehow (it doesn't matter how, but it's not directly destructive) into a higher orbit over the course of a century.

Details:

• The earth-sun distance will increase by 150,000 km (0.001 AU) per year until it is 1.1 AU in 2115.
• This corresponds to a temperature drop of approximately 15C before accounting for feedback like increased ice cover reflecting more light.
• Technological and scientific progress has stalled, so we're limited to what we have today or what we could build without significant R&D, but substantial resources.

(How) Can we counter this temperature drop, e.g. by enhancing the greenhouse effect?

posted over 9 years ago

frodoskywalker‭

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