Four companies have been ordered to stop working with engineered stone after failing to protect their employees from deadly silica dust, as part of a nationwide Health and Safety Executive (HSE) crackdown.

A new study examining the aftermath of California’s Eaton and Palisades wildfires has found significant variations in potentially harmful contaminants left behind in residential soils and ash, highlighting the risks posed by urban wildfires and the benefits of large-scale clean-up efforts.

As thousands of soccer descend on cities across North America this summer, transportation networks are expected to face a familiar challenge: handling large crowds without bringing urban mobility to a standstill.

Scotland’s environmental standards watchdog has called on the Scottish Government to overhaul its engine idling laws, warning that the £20 fixed penalty that has not been updated in more than two decades is failing to deter drivers and is so low it is actually putting councils off enforcing the law.

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.