Buckingham Palace, London's Tower Bridge, Old Trafford and Big Ben are taking part in the event to raise awareness about climate change.Read the full story ›
A near-total eclipse of the sun has begun, but cloud cover across much of London is disappointing many.Read the full story ›
Prince Charles has said there is "awful lot to worry about" in relation to the world's environmental resources and wildlife.
He said his conservation efforts were driven by a need to leave future generations a world "which isn't even more destroyed and damaged and dysfunctional than it need be".
He listed his areas of concern from the continuing destruction of rainforests, to the threat to endangered animals like rhinos, elephants and tigers and the need for sustainable cities.
Charles said: "The world has looked to the United States for leadership in so many challenging circumstances in the past.
"However, today we are faced by truly exceptional challenges and threats - a veritable 'perfect storm' which, if not met by strong, decisive and far-sighted leadership, could overwhelm our capacity to rectify the damage and thereby destroy our grandchildren's future inheritance."
His comments came after he was presented with the exceptional leadership in conservation honour, from the International Conservation Caucus Foundation during a ceremony in Washington.
Britain's beaches are becoming increasingly littered with wet wipes that people are flushing down the toilet, conservationists have warned.Read the full story ›
Feeding bread to ducks could destroy their habitats and cause the birds stress and misery, a charity has warned.Read the full story ›
The vehicle, which is operated by First West of England, will use waste from more than 32,000 households along its 15-mile route.Read the full story ›
MPs warn a controversial trade deal being between the EU and the US risks an unacceptable "race to the bottom" on environmental standards.Read the full story ›
More than 5,000 protesters have gathered outside Parliament in London calling on politicians to take tougher action on climate change.
Crowds of environmental activists cheered as a host of speakers including Vivienne Westwood, who appeared via video link, and Green Party MP Caroline Lucas attacked the Government and accused it of not taking action.
Villarrica - one of Chile's most active volcanoes - has erupted, forcing the evacuation of nearby communities.Read the full story ›
The moon will pass in front of the sun on Friday, March 20, casting a huge shadow over the Earth.Read the full story ›