Diesel engines

A man walks through Greenwich Park as a haze of pollution sits over the London skyline.

London’s toxic air pollution is killing thousands every year

Environment

London was once famous for its “fog,” which in reality was toxic smog from coal fires. Then the city passed new laws and cleaned up its act. Now, smog is once again a serious problem. This time cars are to blame — and the UK government refuses to do anything about it.

Fuel Shortage in Gaza

The World

Fungal Fuel

The World

Cleaner Diesel Engines

The World

Diesel Regulations

The World

Cleaner School Busses

Some school districts in California are switching from diesel buses to those powered by cleaner-burning natural gas. Many of the oldest and most polluting diesel engines are in school bus fleets. And health experts say that diesel exhaust contributes to lung cancer, asthma and other respiratory problems, putting school children at an especially high risk. […]