Drought linked to polluted winter air
Wednesday, March 5, 2014 - 01:00
in Earth & Climate
Lack of rainfall, along with low winds and stagnant conditions that trapped pollution near the ground, contributed to increase in soot, officials say. California's parched winter brought a big surge in air pollution, pushing the number of bad air days one-third higher than the previous winter and posing a serious health threat, state air quality officials said Tuesday.