London’s ULEZ has improved children’s lung development, according to what researchers say is the strongest evidence yet.

Children in New York City appear to have benefited cognitively as the air around them became cleaner, according to new research spanning more than two decades.

2026 has been one of the most turbulent years in aviation history. US military strikes on Iran and retaliatory missile attacks on Middle Eastern flight hubs grounded flights at Doha, Dubai and Abu Dhabi, leaving hundreds of thousands stranded.

Nitrogen dioxide levels in Tower Hamlets have fallen by 37.6% since 2019, according to new air quality monitoring data, with 95 of the borough’s 96 monitoring sites meeting the national annual objective of 40µg/m³ in 2025.

A decade of observations from the south-west coast of England suggests that the cooling winds can also bring higher levels of ozone and other pollutants back towards the shore.

Professor Helen ApSimon played a pivotal role in making the west aware that a nuclear accident had occurred a Chernobyl in 1986. She has also worked on acid rain and is currently Professor of Air Pollution Studies at Imperial College London.