Rotten river: life on one of the world’s most polluted waterways – photo essay

Indonesia’s Citarum is relied upon by millions, but decades of pollution have choked it with chemicals…

Tree of the week: An American elm that survives all the more safely in its isolation

This tree stands on Massachusetts farmland, 95 miles from the nearest town and safe from the…

‘In the sun they’d cook’: is the US south-west getting too hot for farm animals?

As temperatures rise, farmers are being forced to adapt, experimenting with new breeds and cooling methods…

Country diary: bad weather leaves thatchers with the short straw

Buckland in the Moor, Devon: An unpromising wheat harvest results in scruffy raw material for thatchers…

The Guardian view on Tories and migration: stop the posing | Editorial

The drowning of a family of five in the Channel and a fire on a ship…

UK’s bid to power every home via offshore windfarms by 2030 at risk

Germany’s RWE says outdated regulation is slowing investment in onshore electricity grid Britain’s bid to build…

Chris Packham: ‘People saw a different side to me’

His daily lockdown show with stepdaughter Megan McCubbin was Chris Packham’s surprise hit, revealing much about…

Antarctica is Earth’s one virus-free continent: science fights to keep it that way

The giant land is the only place on Earth not touched by Covid. A British team…

Secrets of the ice: unlocking a melting time capsule

As the Earth’s ice melts, large numbers of perfectly preserved ancient artefacts are being revealed. But…

On the horizon: the end of oil and the beginnings of a low-carbon planet

With demand and share prices dropping, Europe’s fossil fuel producers recognise that peak oil is probably…