Flight turbulence increasing as planet heats up - study
Researchers found that severe turbulence had increased 55% between 1979 and 2020 on a typically busy North Atlantic route.
Wildfires: UK to set up new Mediterranean-style specialist units
Fire chiefs are set to increase the number of specialist teams trained in 'fighting fire with fire'.
El Niño planet-warming weather phase has begun
Storms, droughts and record high temperatures lie ahead as US scientists confirm El Niño has arrived.
Is climate change fuelling Canada's wildfires?
Smoke from wildfires has enveloped Toronto and New York. We look at the role of a changing climate.
Crocodile found to have made herself pregnant
Researchers have found the first case of a crocodile who made herself pregnant.
Could ultra-processed foods be harmful for us?
Panorama investigates the links between UK's food safety advisors and the ultra-processed food industry.
Climate change: How is my country doing on tackling it?
Find out how the world's major economies are doing on cutting their emissions and what lies ahead.
'Extinct' butterfly species reappears in UK
The BBC's security correspondent Frank Gardner - a keen naturalist - has been on their trail.
Solar panels - an eco-disaster waiting to happen?
A French factory is pioneering recycling of solar units as experts warn of a waste mountain by 2050.
Conservationists tackle decline of Scottish coastal species
A £6.5m scheme to help prevent the extinction of priority species in Scotland has been launched.
Are tornadoes in the US getting worse?
They are largely unpredictable and unforeseeable but are twisters becoming a more serious threat?
Watch rocket launch first Chinese civilian into space
China has sent three astronauts to its Tiangong Space Station, putting a civilian into orbit for the first time.
Can ‘enhanced rock weathering’ help combat climate change?
'Enhanced rock weathering' uses tiny volcanic rocks to capture the greenhouse gas carbon from the atmosphere.
Global warming set to break key 1.5C limit for first time
The world is likely to hit 1.5C of warming within the next five years because of rising carbon emissions.
Earth Day: How to talk to your parents about climate change
You want to do more about climate change, but how do you persuade the people who call the shots?
Northern elephant seals sleep in the deep to avoid predators
Northern elephant seals sleep underwater for just two hours per day on their months-long foraging journeys.
'Extinct' lion spotted in Chad national park
A healthy lioness is caught on camera in a reserve where the big cats have not been seen since 2004.
Blinding flash over Kyiv was probably meteor, says Ukraine space agency
Nasa denies the flash which lit up the sky was caused by a satellite falling to Earth.
Solar eclipse: Thousands flock to remote Australian town for rare celestial event
Tourists and scientists swell the population of a Western Australia town to view a rare solar eclipse.
Biodiversity targets may be slipping out of reach - study
Ambitious targets to halt the decline in nature may already be slipping out of reach, research suggests.