When you use clean energy, you don't have to pay for the millions of kids with asthma as a result of air pollution from coal. (realitydrop.org)
Is it unreasonable for regulators to allow different levels of pollution in different places, and if so when? (slaw.ca)
The findings could have important implications for planning and public health policy, and suggest that tree planting could play a role in reducing the effects of air pollution from cars. (sciencedaily.com)