When water warms, it holds less oxygen, and this can harm aquatic life and degrade water quality. A new study finds that climate change is driving oxygen loss in hundreds of US and European rivers.
Crying triggers changes in how a newborn baby gets their oxygen. But not all new babies cry, and it’s not always a problem.
Race car drivers compete in full-body safety gear while sitting in a piping hot car, which puts tremendous strain on the heart.
Grant Halverson/Getty Images for NASCAR
Imagine an NBA game played outdoors in August, with no substitutions and players wearing snowsuits, gloves and ski masks. Race car drivers routinely compete under similar conditions.
This year is shaping up to be one of the deadliest on record. Here are some of the challenges climbers face when attempting to reach the summit of Mount Everest.
The Jharia coal field in India has been on fire underground since 1916.
Jonas Gratzer/LightRocket via Getty Images
The Earth isn’t permanent, but it was here for four billion years before humans arrived and should be here for several billion more.
Kate Winslet promoting ‘Avatar: The Way of Water’ in London in December 2022. Winslet held her breath for over seven minutes during filming of the movie.
(Shutterstock)
Kate Winslet held her breath for an impressive 7 minutes and 15 seconds while filming, but the current world record is over 24 minutes. Here’s how people learn to stay underwater for extended periods of time.
When fish like this netted cod are exposed to mercury, it accumulates in certain organs, including the lenses of their eyes.
Yvette Heimbrand
Roxanne Razavi, State University of New York College of Environmental Science and Forestry; Hadis Miraly, State University of New York College of Environmental Science and Forestry, and Karin Limburg, State University of New York College of Environmental Science and Forestry
A new study shows that a time stamp can be put on mercury that accumulates in fish eyes, offering a window into their lifetime exposure.
An artist’s impression of the Earth around 2.7 billion years ago in the Archean Eon. With green iron-rich seas, an orange methane-rich atmosphere and a surface dominated by oceans, the Archean Earth would have been a very different place.
(Illustration by Andrey Atuchin)