Thousands protest against the proposed expansion of a chemical factory in Ningbo, Oct. 28, 2012.
China has the world's second-largest economy, powered by cheap labor and cheap fossil fuel. But now Chinese urbanites want greener, healthier lifestyles. Can the government deliver them?
Water good idea.
Air pollution from burning firewood and charcoal is the fourth-biggest killer in many countries.
Face masks like these, modeled by students from the Peltier Aerosol Lab, vary widely in effectiveness against fine particle pollution.
Richard E. Peltier
Inexpensive cloth face masks, worn by many people in heavily polluted countries, offer only partial protection. Instead governments should warn people to avoid exposure and work to clear the air.
Tiny particles of a mineral known as magnetite may be causing havoc with our health.
Piccadilly Circus in smog, 1952.
Data from London's Great Smog of 1952 show that air pollution exposure in early life leads to striking increases in asthma rates. Millions in the developing world face similar risks today.
Nigeria is one of the countries in Africa that has a serious air pollution problem.
Africa has largely been ignored when it comes to official global air quality programmes. Yet low-income countries like many of those in Africa are particularly affected by air pollution.
When it comes to reducing air pollution, scoring and ranking cities is neither accurate, nor productive.
Ready for recycling? These cans are – thanks to the EU’s Waste Directive.
PORNPIPAT CHAROENTHAI / shutterstock
From recycling to air pollution, eco-friendly European laws have a big impact.
Houston in 2002.
U.S. states need to put in place new ozone air quality standards, but how they are measured – based on peak ozone – doesn't always best reflect a city's overall air quality.
Tonktiti / shutterstock
Sadly the finding that children, especially poorer children, suffer the most from air pollution isn't particularly surprising.
Smog over Mexico City: bad air quality has led to limits on when people can drive their cars in the city.
Mexico City is suffering through an air quality crisis this spring, but institutional corruption is making the proposed solution – restricting car usage – ineffective.
Stephen Bures / Shutterstock
The main mayoral candidates agree air quality is a huge issue, but disagree on policies.
China’s coal use has gone down two years in a row – or has it?
It's a transition the rest of the world is watching: How can we know whether coal use in China – the world's largest emitter – is going up or down?
These backpacked pigeons are patrolling London’s skies.
Pigeon Air Patrol
This low-cost way of monitoring air quality is appealing, but there needs to be acknowledgement of their weaknesses as well as strengths.
So-called 'healthy towns' will address child obesity and dementia, but the real killer remains at large.
NorGal / shutterstock
Poor indoor air quality is responsible for thousands of deaths – here's how to keep yourself healthy.
Pregnant women in three Australian cities are not told that lead exposure during pregnancy is linked to miscarriage and early delivery.
Parents in three Australian states are being given misleading advice about the dangers of lead to babies and small children – including failing to warn pregnant women about miscarriage risks.
Adnan Abidi / Reuters
Air quality in the Indian capital is so bad that the government has instigated a vehicle ban.
Paul Brock Photography/Flickr
From New Year's Eve, to Guy Fawkes night, to Diwali, fireworks are an exciting way to celebrate. But these dazzling displays come at a serious cost to the environment.
Aided by expanded farming in Asia, there’s been a global increase in greenhouse gases from farming.
The Paris climate summit yielded a pact to reduce air pollutants that contribute to global warming but missed a chance to address the interlinked effects of agriculture and climate.