Higher levels of air pollution on marathon race days are associated with slower finishing times, with recreational runners appearing to be affected more than elite athletes, new research suggests.

For decades, 60,000 miles has been a psychological milestone for used-car buyers. Once the numbers on the odometer climb beyond it, concerns about worn engines, ageing transmissions and expensive repairs often grow.

Lawyers representing around 1.6 million motorists involved in the Dieselgate litigation are to ask the High Court for permission to appeal a judgment on whether carmakers used devices to manipulate vehicle emissions tests.

New research has found that large-scale weather patterns explain much of the year-to-year variation in northern India’s winter air pollution and may make seasonal forecasts of severe air pollution possible.

Globally proven continuous trace gas measurement platform now secures UK’s gold-standard certification for environmental monitoring equipment.