Earth
- Agriculture
Just adding pollinators could boost small-farm yields
Adding pollinators could start closing gap in yields for small farms.
By Susan Milius - Climate
2015 smashed heat records
Spurred by global warming and a “super El Niño,” 2015 now ranks as the warmest year since record-keeping began in 1880.
- Climate
Atmospheric tides alter rainfall rate
Atmospheric tides caused by the moon’s gravitational pull ever-so-slightly alter rainfall rates on Earth by producing rises and falls in atmospheric pressure.
- Animals
Whales are full of toxic chemicals
For decades, scientists have been finding troublesome levels of PCBs, mercury and other toxic chemicals in whales and dolphins.
- Oceans
Ocean heating doubles
Earth’s oceans now absorb twice as much heat as they did 18 years ago, with more than a third of that warmth going into the ocean depths.
- Environment
PCB levels still high in Europe’s killer whales, smaller dolphins
PCBs banned for decades still show up at extremely high concentrations in Europe’s killer whales and other dolphins.
By Susan Milius - Earth
Succession of satellites keep eye on Earth
50 years after plans were laid for the first Earth-observing spacecraft, the youngest Landsat satellites are still flying and imaging the planet’s surface.
- Animals
The moon drives the migration of Arctic zooplankton
In the darkness of the Arctic winter, the moon replaces the sun as the driver of zooplankton migration, a new study finds.
- Cosmology
‘Origins’ offers science-based account of creation
In Origins, a science writer compiles an ambitious yet concise history of the universe and life on Earth.
By Sid Perkins - Earth
Ground shakes expose faraway earthquake hot spots
A major earthquake in Costa Rica revealed faraway areas where fluids have weakened rock and boosted the risk of a major earthquake, new research suggests.
- Oceans
Phytoplankton flunk photosynthesis efficiency test
Nutrient-poor ocean waters make phytoplankton photosynthesis inefficient
- Earth
Five things science can (and can’t) tell us about North Korea’s nuclear test
North Korea’s claim about its recent nuclear bomb test isn’t entirely backed up by scientific evidence.