Even a small cloud can weigh as much as four tonnes – but gravity, chemistry and temperature keep them floating in the sky.
Despite promises, it's hard to deny that the UK's standards on agriculture, air pollution, and climate change are under threat.
Preliminary results of a study have shown microplastics have reached in a newly revealed Antarctic environment.
Appearance of bananas in Sri Lanka 6,000 years ago points to prehistoric food globalisation.
Under the terms of the current treaty all commercial mining is forbidden, but rumblings of discontent are stirring beneath the ice.
New findings from the Chagos Islands are a perfect parable for the Anthropocene.
Sounds too cheap to be true? It probably is.
Why home owners shouldn't panic over knotweed on their property.
The heatwave is unlikely to cause the price hikes of 1976 for a number of reasons.
The Earth is losing more and more biodiversity every day, and we should all be worried
Why do whale sharks come together at just 20 locations around the globe?
Scientists have created embryos from the eggs of southern white rhino and sperm from their northern counterparts.
As ponds dry up, so too does our connection to nature.
How will important habitats recover from the wildfires which been blazing through moorland in northern England?
We have long wondered why Earth has stayed habitable enough for life to evolve over billions of years.
Conservationists scaled the sheer cliffs of Mount Lico as part of wider effort to build the case for the protection of Mozambique's mountain forests.
The dry arid conditions that come with a high CO2 atmospheres are the perfect tinderbox for wildfires.
Time to rethink orangutan conservation, now we know that our red relatives are actually very adaptable.
London should be one giant pigeon cemetery, but you rarely see the bodies.
It's hard to measure the value of a tree, but scientists equipped with lasers have come one step closer.
Unlocking the genetic code of certain grasses could help allergy sufferers.
Our research on the oil cartel shows, that it really matters whether OPEC members 'failed to agree' or 'agreed to disagree'.
Beluga sturgeon found their migration route blocked by Europe's largest hydroelectric dam.
Illegal dumping is costing governments millions – but satellite technology could help put a stop to it.
Despite them living for up to 2,500 years, researchers have discovered several baobab trees in Africa have died. Aida Cuni Sanchez on why these trees have a special place in our world.