As the UK's highest ever temperature is recorded at Heathrow airport, why does it get so hot?
Thousands skip school to urge action on climate change, despite criticism from PM Scott Morrison.
The mass stranding on Chatham Island means more than 200 whales have died off NZ in the past week.
A Honduran court finds seven men guilty of killing renowned environmental campaigner Berta Cáceres.
The United Nations biodiversity chief on why extinction is a "silent killer" and deserves more attention.
UK researchers develop an early warning system to prevent crops in Africa being devastated.
Misimi Isimi is an 11-year-old environmentalist on a mission to clean up Lagos.
The BBC's Vineet Khare visited the controversial Carmichael project by Indian energy giant Adani.
Is it remotely feasible to remove 12 billion tonnes of carbon dioxide from the air?
Twenty of the warmest years on record have been in the past 22 years, say the World Meteorological Organization.
UN chief Antonio Guterres warns the rise of nationalism is hurting efforts to tackle global warming.
Why one of Europe's last great beech forests is facing the chop.
The European Union says it wants to become the first major economy to achieve net zero emissions by 2050.
England's largest grey seal colony, in Norfolk, could see record numbers this pupping season.
Why gases produced by livestock, along with the carbon footprint of many of the foods we eat, are a major factor in global warming.
Two climate-conscious Swedish mums have launched a campaign urging people not to fly in 2019.
Global efforts to tackle climate are off track says the UN, as it sees a rise in CO2 after years of decline.
A giant rhino that may have been the origin of the unicorn myth survived until about 35,000 years ago.
The World Meteorological Organization says there's a 75-80% chance of the weather phenomenon forming by next February.
The probe has already taken its first picture from the surface of the red planet.
Government scientists warn that unchecked global warming will wreak havoc on the US economy.
The touchdown confirmation came through shortly after 19:50 GMT.
The US space agency's robot is the first mission aiming to study the Red Planet's deep interior.
Summers as hot as 2018 could be the new normal for the UK by 2050, according to a Met Office study.
The list of suggested scientists who might appear on the new £50 note includes Stephen Hawking and Ada Lovelace.
Strong winds and a towering ‘sand wall’ of almost 100 metres hit the city of Zhangye.
As Nasa prepares to land on Mars, Victoria Gill has been to the centre of operations and found out about an unusual tradition.
It's not clear why the two pods washed up on the Stewart Island but officials say they couldn't be saved.
The InSight mission is about to make the hair-raising descent to the surface of the Red Planet.
A new exhibition highlights the work of the 2018 Nature’s Best Photography award winners.