Children's lung capacity caught up with their peers in less polluted areas once a clean air zone came in, a study shows.

Ulez's success must be a call to action to carry on in our efforts to improve the air in the UK, writes London mum and clean air campaigner Ruth.

Climate change could cost London as much as £36 billion ($50 billion) a year by the 2050s, the Mayor of London’s office said in a report.

Critics said I was attacking motorists. It’s more important for me that the city’s children are no longer breathing dangerous levels of pollution, says London mayor Sadiq Khan

Critics said I was attacking motorists. It’s more important for me that the city’s children are no longer breathing dangerous levels of pollution, says London mayor Sadiq Khan

Wildfires can be devastating. Find out how to prevent them, and what to do if you spot one.

Here's our advice on survival and rescue, keeping your children safe, and winter water safety. You'll also find information on our water safety campaigns and projects.

Here's our advice on survival and rescue, keeping your children safe, and winter water safety. You'll also find information on our water safety campaigns and projects.

Verdant thinktank says cost could top £25bn a year by 2030 and calls for maximum temperature for working and urban redesign to cool down cities

Look at our blazing forests and parched cities. Green policies aren’t a ‘luxury’, and we can’t burn more oil and gas. People need the truth, says London mayor Sadiq Khan

SwimSafe returns to the Royal Docks for its third year, offering free sessions for children aged 7–14 to build confidence in open water and learn essential water safety skills.

During the summer, many of us enjoy the longer days, warmer evenings, and time outdoors. But warmer weather also brings real risks to health, especially when temperatures climb higher than usual.

Here's our advice on survival and rescue, keeping your children safe, and winter water safety. You'll also find information on our water safety campaigns and projects.

Look at our blazing forests and parched cities. Green policies aren’t a ‘luxury’, and we can’t burn more oil and gas. People need the truth, says London mayor Sadiq Khan

A previous heat-health alert had been upgraded to an amber warning with temperatures expected to rise above 30C

Sir Sadiq Khan announces his 10-year plan to clean up the capital’s rivers, which he said had suffered from ‘decades of neglect and pollution’

Whether you're swimming in pools or open water, or thinking about diving, learn how to stay safe.

Currently, none of London’s rivers are assessed as being in “good” condition.

Ten locations across the city are earmarked for cash with more than £2bn pledged for the plan.

Here's our advice on survival and rescue, keeping your children safe, and winter water safety. You'll also find information on our water safety campaigns and projects.

The capital faces a ‘perfect storm’ of rising temperatures, parched land and lower humidity

Homes will save around £45 a year through the cut announced on Andy Burnham's first full day as prime minister.

Lunch break in the sunshine, anyone?

Expanding access to public drinking water and blue spaces are among the priority areas of focus set out in the plan