A group of scientists suggest that concentrating on reducing pollutants like soot, ozone, and methane would mitigate climate change, would show more immediate benefits, and might be more politically feasible than concentrating on carbon dioxide (CO2).
To slow climate change, cut down on soot, ozone (NPR)
Simultaneously Mitigating Near-Term Climate Change and Improving Human Health and Food Security (Science magazine, subscription required)
Those are the good ways.
WaterWired has some bad ways of dealing with climate change.