Here is one of the latest "climate change" warnings:
Q1: How did the methane hydrate get deposited in the first place?
Q2: If it was released during the last extinction period, how was it replenished?
Q3: Once the last extinction period was over, what were the mechanism(s) by which the methane was removed from the atmosphere and by which the earth cooled down?
A: Maybe instead of merely focusing on ways to "prevent" warming we should be finding how to REVERSE it. Obviously such mechanisms exist, because they worked in the past.