Earth

The growth layers in a 70-million-year-old clam shell indicate that a year back then had more than 370 days, with each day being only about 23.5 hours.

As oceans heat up, the ubiquitous noise of snapping shrimp should increase, posing issues for other species and human seagoing ventures.

In an example of how sea noise can harm species, exposed shore crabs changed camouflaging color sluggishly and were slower to flee from simulated predators.

Emmy and Peabody Award–winning science writer, producer and director Ann Druyan talks about Cosmos: Possible Worlds, the next installment of the Cosmos series.

As the region warms, ignorance about creatures ranging from plankton to whales leaves them vulnerable to human activities

Such an extreme fire season is at least 30 percent more likely because of global warming, a new analysis finds

Studies on very old vegetation in the Amazon basin show active management hundreds of years ago on species such as Brazil nut and cocoa trees.

A new view of the frozen continent could improve predictions for sea-level rise

The shift, which may be linked to climate change, can affect sea levels and the distribution of heat and nutrients

Originally published in February 1857

While the changes are not yet permanent, they provide a glimpse into a possible future

Increasing or decreasing the altitude of aircraft by a few thousand feet to avoid thin layers of humidity could make a major reduction to contrails’ contribution to climate change.