As the US recovers from its 4 July heatwave, a new study in Nature Health warns of an impending uptick in people attending hospitals for mental health and behavioural disorders, according to the first multi-country study of heatwave-related mental health hospitalization, led by Monash University in Australia.

A tiny mouse living nearly 7,000 metres above sea level in the Andes is helping scientists rethink the limits of life on Earth. 

The animal, a leaf-eared mouse, is the focus of a new international study co‑authored by McMaster University researchers, revealing how mammals can survive in conditions once thought uninhabitable. 

The Earth’s temperature has been much cooler in the past than previously thought, meaning it could be moving towards the warmest it’s ever been.

Tiny, invisible swirls and twirls – not much bigger than a coin – deep below the ocean’s surface are silently shaping some of the biggest forces shaping our climate: sea level rise, fisheries collapse, extreme flooding, and how much carbon dioxide the ocean absorbs.