February 19, 2012 | 9:53 AM | By

800_slave_lake_kapusta_110515_sm

Flames and smoke from the 2011 Slave Lake fire in Alberta. Evacuations are likey to increase, partly from smoke.

About the author

KQED Science Editor, specializing in weather, climate, water & energy issues. Formerly senior editor of Climate Watch. View all posts by Craig Miller →