Climate
- Climate
The first Americans could have taken a coastal route into the New World
Alaskan glaciers retreated in time for ancient coastal entries of the first Americans.
- Paleontology
The Chicxulub asteroid impact might have set off 100,000 years of global warming
About 66 million years ago, the Chicxulub asteroid impact set off 100,000 years of global warming, an analysis of oxygen in fish fossils suggests.
- Climate
As CO2 increases, rice loses B vitamins and other nutrients
Field experiments add vitamins to list of nutrients at risk from a changing atmosphere.
- Earth
Keeping global warming to 1.5 degrees C helps most species hold their ground
Holding global warming to 1.5 degrees Celsius by 2100 could help protect tens of thousands of insect, plant and vertebrate species.
- Animals
These caterpillars march. They fluff. They scare London.
Oak processionary moths have invaded England and threatened the pleasure of spring breezes.
- Climate
Globetrotting tourists are leaving a giant carbon footprint on the Earth
Globetrotters are responsible for about 8 percent of the world’s greenhouse gas emissions.
- Climate
Bull sharks and bottlenose dolphins are moving north as the ocean warms
Rising temperatures are making ocean waters farther north more hospitable for a variety of marine species.
- Climate
Heat waves are roasting reefs, but some corals may be resilient
The latest research on coral reefs clarifies the devastation of heat waves and looks at how coral might be able to adapt to warming waters.
- Climate
Rising CO2 levels might not be as good for plants as we thought
A 20-year experiment spots a reversal in the way two kinds of plants take up extra carbon from the atmosphere.
- Climate
Cargo ships must cut their emissions in half by 2050
A new international agreement places a cap on greenhouse gas emissions from international cargo ships.
- Oceans
Ocean heat waves are becoming more common and lasting longer
Over the last 100 years, the world’s oceans have sweltered through a rising number of heat waves.
- Earth
Efforts to contain Mississippi floods may have made them worse
Intensive management of the Mississippi River has increased the size of its largest floods, suggests a new study.
