Earth
- Physics
Auroras form when electrons from space ride waves in Earth’s magnetic field
New lab results confirm that auroras are triggered by disturbances in Earth’s magnetic field called Alfvén waves.
- Paleontology
Something mysteriously wiped out about 90 percent of sharks 19 million years ago
Deep sediments beneath the Pacific Ocean revealed a mystery: a massive shark die-off with no obvious cause.
- Climate
The last 30 years were the hottest on record for the United States
Typical temps across large swaths of the country are now 1 to 2 degrees Fahrenheit higher than their 20th-century averages.
- Earth
2021 will be another busy year for the Atlantic hurricane season
The average season is busier than it used to be, as NOAA predicts 13 to 20 named Atlantic storms between June 1 and November 30.
- Climate
‘Tree farts’ contribute about a fifth of greenhouse gases from ghost forests
Greenhouse gases from dead trees play an important role in the overall environmental impact of ghost forests, a new study suggests.
- Climate
‘Zombie’ forest fires may become more common with climate change
Wildfires that survive winter underground can flare up after warm summers and account for more than one-third of the scorched ground in some regions.
- Climate
Climate change disinformation is evolving. So are efforts to fight back
Researchers discuss effective ways to counter the changing tactics of climate denial.
- Animals
The U.S.’s first open-air genetically modified mosquitoes have taken flight
After a decade of argument, Oxitec pits genetically modified mosquitoes against Florida’s spreaders of dengue and Zika.
- Climate
Rivers might not be as resilient to drought as once thought
Seven years after Australia’s Millennium drought, water flow in many rivers isn’t returning to predrought levels.
- Animals
A common antibiotic slows a mysterious coral disease
Applying the antibiotic amoxicillin to infected lesions halted tissue death in corals for at least 11 months after treatment.
- Climate
Mangrove forests on the Yucatan Peninsula store record amounts of carbon
Dense tangles of roots and natural water-filled sinkholes join forces to stockpile as much as 2,800 metric tons of carbon per hectare in the soil.
- Microbes
These climate-friendly microbes recycle carbon without producing methane
A newly discovered group of single-celled archaea break down decaying plants without adding the greenhouse gas methane to the atmosphere.
