The northern lights are brighter this year. Scientists explain why
Solar activity is peaking, and a quieter sky is letting more of us see it.
Why the next data centres are being built underground
Cooler, quieter and harder to spot: the server farms heading below ground.
The rooftop gardens cooling Europe’s old towns
Green roofs are turning hot terraces into the coolest streets in town.
Strawberry season and the hidden cost of a warmer spring
An early harvest sounds good — until the bees are not ready.
Jellyfish blooms are a warning sign for warming seas
More jellyfish is rarely good news. Here is what they are telling us.
Rewilding Europe: the return of the big cats
Lynx are back in the forests. Not everyone is celebrating.