A decade of improvements in American air quality has been undermined by increasingly severe wildfires, which are driving a resurgence in harmful ozone pollution across much of the country, according to a new study.

Air pollution levels considered acceptable under current federal regulations may still pose significant health risks, particularly for cardiovascular disease, according to a new review of global research published in Environmental Pollution.

Residents in Nottingham are being encouraged to leave the car at home and explore alternative ways of getting around following the launch of the city’s first temporary mobility hub.

A New York judge has ruled that officials acted unlawfully in denying requests for records related to environmental hazards following the 11th September attacks on the World Trade Centre.

Scientists have unveiled a powerful new way to detect and measure formaldehyde in the atmosphere, a breakthrough that could improve air pollution monitoring and help researchers better understand the chemistry behind smog, ozone formation and wildfire emissions.

London has set an ambition to replace 17% of van miles with cargo bikes by 2030. That would require roughly 12,000 cargo bikes moving goods across the capital’s streets. Today, there are fewer than 1,000.