So to sum up: The way to save our planet is clear. Step 1 is to embrace natural gas as a "bridge" fuel, limiting the risks from fracking and helping China and other developing countries to switch from coal to gas. Step 2 is to fund research to ensure that the jaw-dropping three-decade plunge in solar power costs continues for two decades more. Natural gas is the temporary ally. Cheap solar is the cavalry that will ride in to finally save the day.
Preventing catastrophic global warming might still be a long shot. But if we do the right things now, we just might make it.