Annual switching off of lights in homes, businesses and landmarks holds extra significance ahead of this year’s climate talks in Paris, says the UN secretary general, Ban Ki-moon
Fall in amount of carbon absored by rainforest means even greater cuts to manmade emissions are needed to combat climate change, warn scientists
We feed six million loaves of bread a year to ducks in England and Wales causing damage to birds’ health and polluting waterways. Oats, corn and peas are safer for the birds
The $43.5bn trust is the largest philanthropic organisation in the world and is committed to the eradication of malaria and polio, and controlling the spread of tuberculosis and HIV
UK’s chief scientist has said GM crops could provide plentiful food with less damage to the environment and at lower costs. But does that mean we should grow them? Karl Mathiesen investigates.
‘Research presented as overly precise climate predictions rather than best advice is manipulated by nonsensical sceptics’