Have we entered a new age defined by humans? Paleontologist Kenneth Lacovara says there's "no doubt" that humans' impact on Earth will show up in the geological record.
Earth's rocks and fossils can help us understand our own species. Paleontologist Kenneth Lacovara explains important moments in Earth's history that help us recognize our place in the world.
Wednesday night's aurora borealis forecast was particularly strong, so Icelandic officials tried to reduce light pollution to make the green glow more visible to people in the capital.
A fertilizer company says third-party tests show the water contaminated with low-level radiation has not leaked off the site into nearby wells. Residents are upset they were not informed for weeks.
An endangered whale was found dead over the weekend, entangled in derelict fishing gear. Such incidents have been on the rise in recent years. A new California law aims to combat the problem.
The pollution levels have a staggering impact on health, according to the report, which says: "In 2012, one out of every nine deaths was the result of air pollution-related conditions."
It has been a common belief that low-emissions vehicles, like hybrids and electric cars, are more expensive than other choices. But researchers at MIT have found otherwise.
A key piece of the Obama administration's efforts to cut back on carbon emissions faces a test in court on Tuesday. An appeals court is hearing arguments on regulations announced last year.
One science teacher in Miami knows how sea-level rise could affect her students' lives when they are her age. She is determined to teach them to take that seriously, with optimism.