A new study takes an innovative approach to reducing fine particle air pollution and spotlights key sources: factories that burn coal and oil, petrochemical plants and burning wood for home heating.
Four out of 5 Americans live in cities, so urban planning can make a big difference in our lifestyles – especially if it promotes healthy diets and physical activity.
North America's prairies once were home to millions of wild animals. Today, most of that land is farmed or developed, but some grasslands have never been plowed and could be rewilded.
US military leaders have to plan for operations all over the world, so they can't afford to ignore climate change or debate its causes.
According to a new study, about four in 10 air pollution deaths in the US are due to emissions crossing state lines.
Bangladesh is on the front lines of climate change, but factors including money, gender and religion make some Bangladeshis much more vulnerable than others. Can it find inclusive ways to cope?
Golden Rice – a controversial genetically modified product designed to combat malnutrition – has been approved as safe in the Philippines. But key questions remain unanswered.
Storing more carbon in soil helps slow climate change and makes croplands more productive. But there are two kinds of soil carbon that are both important, but function very differently.
Through genetic detective work, scientists have identified missing links in the tomato’s evolution from a wild blueberry-sized fruit in South America to the larger modern tomato of today.
A new generation of ranchers is exploring sustainable ways to raise cattle, sheep and goats in California. Some are grazing herds on fire-prone lands, reducing wildfire risks and improving soils.
Earth's biggest rivers are streams of warm water vapor in the atmosphere that can cause huge rain and snowfall over land. Climate change is making them longer, wetter and stronger.
Two centuries after it was first sighted by Russian explorers, Antarctica is a key site for studying the future of Earth's climate – and for global scientific cooperation.
Starting Feb. 6, 2020, California farmers will be barred from using chlorpyrifos on their crops. The Trump administration says more study is needed, but other states are also moving ahead.
Both opinions the three-judge panel handed down warned of a potential climate catastrophe. Only one judge said the courts have an active role to play in making the government change course.
Mayflies and stone flies are extremely vulnerable to water pollution, which has implications for the larger food chain.
Icelandic whalers have killed more than 1,700 whales since a global ban was adopted in 1986 – up to 2019, when no hunts took place. Is Iceland quietly getting out of the business?
To manage plastic wastes, nations first need to know what they have and where it's coming from. A case study from Trinidad and Tobago shows how this approach can help identify solutions.
Like many plants, onions have defenses to ward off creatures that may want to eat them. Their secret weapon is a kind of natural tear gas.
Puerto Rico's January earthquakes came after many foreshocks and have been followed by numerous aftershocks. Scientists are studying these sequences to improve earthquake forecasting.
For decades nations have worked to curb international sales of endangered plants and animals. But in countries like China, with high demand and speculative investors, that strategy fuels bidding wars.
Do public lands in the West belong to Westerners, or all Americans? Moving a federal agency's headquarters from Washington, DC to Colorado is the latest skirmish in a longtime struggle.
Coyotes, whose range is expanding, are now at the doorstep of South America.
The EPA is considering a rule that would limit what kinds of science regulators can use in setting rules. A scholar explains how this shift would bar his work mapping child lead poisoning.
What does it mean to call a nonfood product like lipstick organic? Federal regulators allow such claims, but have set few standards defining them.
Cities and states are considering limits on single-family zoning, which experts say promotes sprawl and separation. But Americans aren't all headed for duplexes yet.