Ivory from illegally-poached elephants can easily be mistaken for antique.
A century after they vanished, oysters have returned to the Dornoch Firth thanks to an ambitious natural cleaning project
The party wants publicly-owned firms to join – not replace – the market.
New study finds little evidence that farmers consciously tried to turn wild plants into more useful crops.
It's not all about the gym and your diet. The places where we live and work shape our health, too.
Fifteen charter planes arrived in Orkney after a red-windged blackbird was spotted.
Chances are you won't make it through this article without wiping your hands.
A entire beach in Ireland has returned 33 years after being washed away.
Weather forecasting stopped looking for patterns in the past, and started using numbers to look solidly at the future.
What if extreme weather events could be attributed to human-induced climate change with confidence?
Though the Common Agricultural Policy has few friends, it will be incredibly tough to replace it with something better.
The era of a new coal power plant in China every week is over.
This summer sees the release of Al Gore's An Inconvenient Sequel: Truth to Power.
Diesel engines have been demonised for their emissions but the technology has already cleaned up its act.
Energy firms should compete over the 'stickiest' customers, who won't switch suppliers.
Farmers are setting fire to their straw and spreading air pollution across northern India.
The $4m cost is almost double the anti-poaching budget for South African National Parks.
Eat less meat, save the world
But the most effective measures will be unpopular.