Earth
- Climate
Why some rainbows are all red
Red rainbows are caused by the position of the sun in the sky, appearing more often during sunrise and sunset, new research finds.
- Climate
Fireworks brighten the sky but dampen the view
Fireworks and other pyrotechnics severely reduce visibility during celebrations such as New Year’s Eve and Guy Fawkes Day, researchers report.
- Climate
Ice rafts traveling farther and faster across the Arctic Ocean
Climate change may be causing Arctic sea ice to travel farther and faster than it did 15 years ago, taking pollutants and other material along for the ride.
- Physics
Uncovering the science of sand dune ‘booms’
Mechanical engineer and geophysicist Nathalie Vriend explores noises in the desert that are triggered by sand sliding down dunes.
- Animals
Algal toxin impairs sea lion memory
California sea lions that have brain damage linked to domoic acid poisoning have impaired spatial memory, a new study finds.
- Climate
Year in review: Global warming continues apace
New climate research showed that the much-discussed warming hiatus never happened, carbon dioxide levels are higher than ever and Earth is heading toward a new normal.
- Earth
Year in review: Pacific Plate slides over slick layer
Some explosive science offered a glimpse into how tectonic plates slide around Earth’s surface.
- Environment
Year in review: BPA alternatives aren’t benign
Evidence is accumulating that at least one popular alternative to bisphenol A can enter the body and trigger developmental and physiological changes.
- Climate
195 nations approve historic climate accord
The Paris climate talks end with delegates from 195 nations releasing a hard-fought agreement to curb climate change and limit warming to 2 degrees Celsius.
- Earth
Gooey rock in mantle thickens 1,000 kilometers down
Gravitational tugs provide an unprecedented peek into the structure of Earth’s mantle and reveal a sudden increase in viscosity roughly 1,000 kilometers below ground.
- Climate
Global carbon emissions fell in 2015, despite economic growth
Society’s carbon footprint fell slightly in 2015, largely due to decrease coal consumption in China, researchers report.
- Paleontology
New dating of dino ancestor challenges Triassic timeline
New dates for geologic layers of well-known fossil formation show that dinosaurs and their ancient relatives were separated by less time than researchers thought.
