They are some of the last unexplored parts on Earth; the largest is more than 200 miles long.
Despite immediate backlash to his tweet, Kentucky congressman Thomas Massie refused to delete the post.
Celebrate Earth Day 2018 with these NASA pictures of Earth from space.
Rising water temperatures are killing corals—but researchers think we can stop the die-off.
The effects of climate change on forests depend on the type of tree.
"This is sort of a dark archaeology, where we benefit from climate change that's making this ice melt."
"There's just no time for these systems to recover."
The future is uncertain for many favorites.
Sea levels rose six times faster than the global average between 2011 and 2015 in the "hot spot."
Around seven in 10 Americans think global warming is happening.
Climate models are tricky. This study shows the most accurate ones predict the worst future warming.
Injecting aerosols into the atmosphere in the Northern Hemisphere would be disastrous for parts of Africa, scientists say.
Syria announced its decision at the U.N. global climate talks in Bonn, Germany. This comes a month after Nicaragua changed course and came on board.