Going underground: the world’s most spectacular caves
A cave complex recently reopened on the north Kent coast joins an array of interesting, awe-inspiring and historic grottos from Iceland to New Zealand
Geology
How humans are driving the sixth mass extinction
Scientists have been warning for decades that human actions are pushing life on our shared planet toward mass extinction. Such extinction events have occurred five times in the past, but a bold new paper finds that this time would be fundamentally different. Fortunately, there’s still time to stop it.
Climate change is lifting Iceland – and it could mean more volcanic eruptions
Land moving upward faster than researchers expected at 1.4in every year, allowing ‘hot potato’ rocks to rise
World’s beaches being washed away due to coastal development
From Florida to the Costa del Sol, costly sea defences are accelerating beach erosion and will ultimately fail to protect coastal towns and cities from rising tides, say experts