The stone flake discovered in Blombos Cave  in South Africa. Photograph: Craig Foster/Handout via Reuters

A small stone flake marked with intersecting lines of red ochre pigment some 73,000 years ago that was found in a cave on South Africa’s southern coas(...)

Sea ice in Victoria Strait, Nunavut, Canadian Arctic: the impact of current climate change on the planet may be larger than expected. Photograph: Cory Glencross/iStock/Getty

The magnitude of past abrupt climate change events around the planet may have been underestimated, according to a major international study led by a s(...)

 Mount Agung volcano is obscured by clouds. Photograph: Sonny Tumbelaka/Getty

The world is facing into a century of extreme weather disruption as a consequence of global warming, but volcanic activity is going to be “the joker i(...)