Earth
- Climate
Analyze This: Climate change could make food less healthy
Levels of important nutrients are lower in crops exposed to high levels of carbon dioxide, a greenhouse gas. How high? Try levels expected to be typical 30 years from now.
- Oceans
More than half the world’s ocean area is actively fished
Fleets harvest fish from 55 percent of the world’s total ocean area. Just a handful of countries play an outsized role fishing the open ocean, far from coasts.
- Earth
Scientists Say: Inclusion
As rocks form slowly, they can trap things in their timeless clutches. A material trapped inside a mineral is called an inclusion.
- Ecosystems
Exploring the mysteries of Cuba’s coral reefs
Researchers are studying the mysterious lives of creatures in and near Cuba’s coral reefs. What they learn could help protect ocean life globally.
By Bryn Nelson - Ecosystems
Migrating crabs take their eggs to the sea
Cuba’s colorful land crabs connect swamp and sea with their yearly mass migrations. Protecting their routes can help other animals too.
By Bryn Nelson - Genetics
Explainer: DNA hunters
Snippets of DNA can be left behind by a passing organism. Some researchers now act as wildlife detectives to identify the sources of such cast-off DNA.
- Physics
Explainer: What is thundersnow?
Wacky weather produced lots of thundersnow during New England’s recent winter storms. Some scientists now suspect Mother Nature got some human help.
- Environment
Household products can really pollute the air
Auto exhaust isn’t the only major sources of air pollution, indoors and out. A new study finds a laundry list of household products can — when used by millions — match the contributions of traffic.
- Environment
Fish get pooped living in polluted water
Living in polluted water can tire fish out, a new study finds. This can make it harder for them to find food and avoid being eaten, themselves, by predators.
- Climate
Super-tiny pollutants may help fire up fierce storms
Tiny pollutant particles floating in air may help create clouds and wind, strengthening storms.
- Agriculture
New ‘tattoo’ could lead to drought-tolerant crops
Scientists create stick-on 'plant tattoo.' It measures how efficiently crops use water, a key to better identifying breeding stock for more drought-resistant crops.
- Animals
Rising carbon dioxide could leave tiny lake dwellers defenseless
Rising carbon dioxide in freshwater lakes may change how predators and prey interact.