The total cost of climate change seems impossible to pin down, given the uncertainties. But climate researchers and economists are chasing after that sum.
A strong La Niña event may give some ski areas, particularly in the Pacific Northwest, bonus snowfall this year.
Researchers are unsure how far they should push "geoengineering" experiments.
CLIMATE CENTRAL - What would happen to the climate if we stopped building carbon dioxide-emitting devices, but existing ones lived out their typical lives?
CLIMATE CENTRAL - After Hurricane Katrina in 2005, New Orleans lost many experts who could have helped the city recover from the storm. Five years later, has the "brain drain" been plugged?