Kilimanjaro: Africa’s disappearing glaciers

During the Vietnam War, North Vietnamese VietCong guerrillas built a vast network of tunnels in the south of the country as part of the insurgency against the South Vietnamese government and their American allies. The tunnel network was a key base and shelter for the North Vietna ...  Show more

On 28 January 1986, a space shuttle launch went wrong.Six astronauts and a teacher, Christa McAuliffe, were killed.In 1984, US President Ronald Reagan had announced that Nasa would search for a member of the public to accompany experienced astronauts on the space shuttle Challeng ...  Show more

The ice sheets and glaciers that cover one-tenth of Earth’s land surface are in grave peril. High in the Alps, Andes, and Himalaya, once-indomitable glaciers are retreating, even dying. Meanwhile, in Antarctica, thinning glaciers may be unlocking vast quantities of methane stored ...  Show more

There's always a moment of intense isolation when Jessica Mejía gets dropped off on the Greenland ice sheet for a multi-week research stint. "You know you're very much alone," said Jessica, a postdoctoral researcher in glaciology at the University of Buffalo. Glaciers such as tho ...  Show more

The Congo Basin is home to the world’s largest peatland. Simon Lewis, Professor of Global Change Science at UCL and the University of Leeds, tells Roland how peatlands all around the world are showing early alarm bells of change. From the boreal Arctic forests to the Amazon, Simo ...  Show more

Has the loss from Greenland’s vast ice sheet reached a tipping point? According to glaciologist Michalea King, the rate at which its ice flows into the sea stepped up about 15 years ago. The process of glacial retreat is outpacing the accumulation snow and ice in Greenland’s inte ...  Show more