We summarize the week's scientific breakthroughs every Thursday.
Direct detection of lithium from a SpaceX rocket reentry offers new evidence that metal pollution from space debris could threaten the ozone layer.
Antarctic Peninsula projections show accelerating ice loss, warming oceans and global sea level impacts tied to greenhouse gas emissions.
Sediments from Scotland hint that ocean-atmosphere interactions continued more than 600 million years ago despite widespread ice.
New plankton arrived just a few millennia — maybe even decades — after the Chicxulub asteroid, forcing a rethink of evolution's catastrophe response speed.
Hydrogen reserves in Earth’s core large enough to supply at least nine oceans may influence processes on the surface today.
A temperate tunneling species of dung beetle seems capable of adapting to climate change, but their tropical cousins may be less resilient.
Polar bears can struggle to adapt to climate change. Bears on Svalbard may be surviving on land prey and seals — but scientists warn it may not last.
Seismic tremors reveal a shallow fragment of an ancient tectonic plate beneath Northern California, helping explain damaging earthquakes near the surface.
An analysis of global climate data shows sustained warming even as El Niño faded.
