Clean Air Policy

As the climate warms, forests encroach on meadowland

If confirmed, Sen. John Kerry argued that failing to address global warming should be cause for concern

To constrain climate change, such unconventional oil use needs to be stopped, according to scientists

In his second inaugural address, Pres. Barack Obama said the U.S. must respond to the threat of climate change and lead the development of sustainable energy

Whether by river or rail, local communities often oppose plans to expand capacity to export U.S. coal to China

Atmospheric black carbon is not only bad for the lungs, but can also act as greenhouse particles under certain circumstances

All the provinces coal-burning power plants will be shuttered by 2014, making the Canadian province the first coal-free jurisdiction in North America

Recent findings indicate that previous research underestimated the effects of roadway traffic on asthma

From carcinogens to acid rain, tar sands development is raising levels of industrial pollution across the north

Delays in reducing emissions of the greenhouse gases causing global warming may mean combating climate change becomes prohibitively expensive

Portland, Ore., Seattle and San Francisco are often top contenders, but some of the other leading choices may be a surprise