Deflecting asteroids is not enough — we need to know when they approach

After NASA’s DART asteroid-deflection experiment, a fully funded telescope for detecting space rocks is an equally pressing priority.

The oceans store more carbon than thought — but not enough to save the planet

Although the marine ‘carbon sink’ is bigger than expected, it is still inadequate to keep global warming at bay.

Electric cars could break the grid if future drivers stick to today’s routines

The rise in electric-vehicle ownership could overload the electric grid unless charging becomes a daytime activity.