Taxi drivers are exposed to twice the level of pollution compared to other drivers.
Despite the overwhelming evidence that electric vehicle technology can deliver huge benefits, misinformation continues to muddy debate. Let's look at the facts.
Doctors have long taken up global issues, from nuclear war to ozone depletion and climate change, and helped shift the course of history.
The dangers of outdoor air pollution are now well known, but those related to the air we breathe at homes and at work are much less so, according to an international study.
Leaving your car running will marginally increase CO2 emissions, but it may massively reduce exposure to the toxic gases and particulates that are shortening thousands of lives.
Are health risks from air pollution less serious than we think? Mainstream scientists call this a fringe view, but it's getting high-level attention at the Environmental Protection Agency.
As organs go, lungs do not receive a lot of attention, and diseases associated with them, such as lung cancer, historically have been underfunded. Here's a look at how your amazing lungs function.