Latest Josh Willis Stories
Like mercury in a thermometer, ocean waters expand as they warm.
New NASA measurements of the Atlantic Meridional Overturning Circulation, part of the global ocean conveyor belt that helps regulate climate around the North Atlantic, show no significant slowing over the past 15 years.
Climatologists have long known that human-produced greenhouse gases have been the dominant drivers of Earth's observed warming since the start of the Industrial Revolution.
The average temperature of the water near the top of the Earth's oceans has significantly cooled since 2003. New research suggests global warming trends are not always steady in their effects on ocean temperatures.
Sea level isn't, well, level. Nor is the rate by which sea level has been rising over the past few decades, but the trend is clearly up. Rising seas have the potential to affect billions of people around the globe, not just those living near coastlines.
For detectives in a crime story, identical fingerprints or cloth fibers might solve the case. For scientists, it could be something equally dramatic. It might be real-life observations that match the simulations of their computer models.