As the world fails to reach its emissions goals, some scientists say it's time to look for other solutions to the problem.
Most scientists oppose Russ George's efforts to fix the world's climate. But who's going to do something about it?
Talk about global warming quickly turns to the question of carbon in the atmosphere. But the more fundamental observation about how much sunshine the planet bounces back into space should probably precede any mention of greenhouse gases.
Before mankind can make big steps about widespread changes to natural process that affect climate change, it needs to take the baby steps of figuring out how to oversee the decisions.
Efforts at geoengineering to cool a warming planet are picking up steam.