Coal-fired power plants produce air pollution that kills thousands of Americans every year. President Trump's embrace of coal energy will delay a shift to cleaner fuels that is saving money and lives.
Large livestock farms, known as CAFOs, have polluted air and water in many communities. A recent court decision will force CAFOs to report their air emissions from manure and other sources.
But the most effective measures will be unpopular.
An extensive amount of research has shown a direct link between air quality and fetal and infant health. Cleaner air has saved lives – and money.
Developed nations need to stop telling smoggy cities to clean up their act and start critiquing their own consumption habits.
The merchant navy – some 20,000 ships – carries the vast majority of trade goods around the world. Unfortunately, they also spew toxic pollutants that harm people and the environment.
Trump's executive order on climate will cede American leadership internationally and scores a political win. But reversing all Obama's work will require big wins in court.
New research shows that exposure to fine particulate air pollution may double the risk of dementia in older women by increasing growth of beta-amyloid plaques in the brain.
Today's political climate gives new EPA head Scott Pruitt a clear path to seriously cut back EPA enforcement – more than previous administrations.
With little action at the national level on climate change, state and city officials are taking the lead – but by emphasizing local benefits.
Glencore has admitted responsibility for air pollution in Mount Isa, but its latest report puts the onus on residents to minimise their exposure to lead contamination in their homes.
President Trump has ordered federal agencies to cut two regulations for every new one they enact – ignoring the fact that many regulations produce large social benefits.
Other EU members don't want a neighbour that ignores air quality standards.
Science cannot ensure a sustainable future for the world’s population on its own. Artists are needed as well.
A century before the modern environmental era, experts realized that London's dirty air was corroding its new Parliament building. This insight led to some of the first air pollution laws.
Australia needs stronger policy aimed at curbing air pollution, but the options currently on the table fall short. For now, we could all aim to drive less and turn off the engine when the car is idle.
Infrared cameras are the technology of choice for detecting gas leaks across the US. New research shows that these cameras can be quite inaccurate, and leaks can persist without being detected.
Party poppers, candles and wood fires will get you feeling festive – and breathing pollution.
Will the evidence finally convince polluted cities to clean up their act?
Total emissions are coming down. But many people still live in cities with poor air quality.