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Imagine that our Sun brightens by 1 percent instantaneously. How long would it take for the...

Imagine that our Sun brightens by 1 percent instantaneously.

How long would it take for the Earth to reach its new equilibrium temperature? Is this longer or shorter than the time it would take Mars or Mercury to reach their respective equilibrium temperatures?

What radiative forcing does this change correspond to?

Approximately how much warming would this brightening eventually cause?

How would the calculated radiative forcing change if the brightening takes place over 1,000 years instead of instantaneously?

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