3-billion-year-old crystals hint at lost continent’s fateScience News, January 2017
Relics of a long-lost continent may lurk beneath the Indian Ocean.
Climate change may boost toxic mercury levels in sea lifeScience News, January 2017
The muddying of coastal waters by climate change could drastically increase levels of neurotoxic mercury in sea life, contaminating food supplies.
Humans’ stuff vastly outweighs humansScience News, January 2017
Have you ever felt weighed down by your material possessions? The boundless variety of stuff that humans manufacture — tractors, buildings, ballpoint pens, Hello Kitty backpacks — has serious heft: 30 trillion metric tons, a new study estimates. That’s about 50 kilograms for every square meter of Earth’s surface.
Asteroid barrage, ancient marine life boom not linkedScience News, January 2017
An asteroid bombardment that some say triggered an explosion of marine animal diversity around 471 million years ago actually had nothing to do with it.
Earth’s last major warm period was as hot as todayScience News, January 2017
The last time Earth’s thermostat was cranked as high as it is today, sea levels were high enough to completely drown New Orleans (had it existed at the time), new research suggests.
For three years in a row, Earth breaks heat recordScience News, January 2017
For the third year running, Earth’s thermostat broke a new record: 2016 was the warmest year since record-keeping began in 1880.
Adapted for Science News for Students.
Coastal waters were an oxygen oasis 2.3 billion years agoScience News, January 2017
Earth was momentarily ripe for the evolution of animals hundreds of millions of years before they first appeared, researchers propose.
Petrified tree rings tell ancient tale of sun’s behaviorScience News, January 2017
The sun has been in the same routine for at least 290 million years, new research suggests.
Many tiny moons came together to form moon, simulations suggestScience News, January 2017
The moon is made of moons, new simulations suggest. Instead of a single colossal collision forming Earth’s cosmic companion, researchers propose that a series of medium to large impacts created mini moons that eventually coalesced to form one giant moon.