By the numbers: 68.9% of San Diego County residents say they're at least somewhat worried about global warming, compared to the national average of 63.3%.
71% of Californians say they're worried, according to Yale Program on Climate Change Communication estimates based on survey data.
Zoom in: Cities across the county have adopted "climate action plans" to mitigate the effects of global warming and minimize their carbon footprints.
Plans from Carlsbad, Encinitas and La Mesa got the highest marks from the Climate Action Campaign last year.
The bottom line: California needs to triple the rate at which it has cut its greenhouse emissions each year since 2010 if it's going to meet its 2030 emissions target.