Planting cover crops, like this red clover in Sussex County, Delaware, can help return carbon to farm fields.
Michele Dorsey Walfred/Flickr
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.
Places where lots of animals come into contact can help pathogens move from species to species.
Baloncici/iStock via Getty Images Plus
In the real world, new diseases emerge from complex environments. To learn more about how, scientists set up whole artificial ecosystems in the lab, instead of focusing on just one factor at a time.
The USS Cairo pulls up to the banks of the Mississippi River in 1862.
U.S. Naval History and Heritage Command
A new look at detailed data about Civil War skirmishes along the Mississippi River reveals another key to the Union's victory.
The presence of mayflies and stone flies indicates clean water is nearby.
Mayflies and stone flies are extremely vulnerable to water pollution, which has implications for the larger food chain.
The Immaculate Conception Catholic Church lies in ruins after a magnitude 6.4 earthquake in Guayanilla, Puerto Rico, Jan. 7, 2020.
AP Photo/Carlos Giusti
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.
Your calendar dates back to Babylonian times.
The Babylonians' calendar was passed down from civilization to civilization.
About 12% of transgender Americans have experienced homelessness in the last year.
Transgender people experience high rates of discrimination in housing and shelter services.
Leaders of the three countries signed the USMCA in November 2018.
AP Photo/Pablo Martinez Monsivais
President Trump and Democrats recently agreed on a deal to pass the U.S.-Mexico-Canada Agreement. A trade scholar explains what's new.
The waters of Quitobaquito in southern Arizona have attracted diverse visitors for thousands of years.
Border wall construction through Organ Pipe Cactus National Monument in Arizona is encroaching on a site where people from many cultures have interacted for thousands of years.
A portrait from 1868 of abolitionist Harriet Tubman.
AP Photo/Sait Serkan Gurbuz
Among Tubman's most daring feats was helping slaves escape. She believed she went into trances and had visions. These, to her, were God's way of guiding her, which made her quite fearless.
One slice is never enough.
Pizza might seem like a simple food, but it's uniquely equipped to excite our brains and thrill our taste buds.
Pemerintahan Trump mendukung tambang baru di Alaska dan Minnesota yang ditentang karena dapat menghancurkan daerah tersebut.
Lithium ion batteries store large amounts of power in small battery cells that can be recharged.
Nobel Prizes in science are usually given for revolutionary ideas that change our perception of the universe. But this year's chemistry prize was awarded to inventors of a revolutionary device.
The Bingham Canyon open-pit copper mine in Utah has operated since 1903.
The Trump administration is supporting new mines in Alaska and Minnesota that many opponents say could devastate sensitive areas around them.
Actor Roger Moore poses with a martini after learning he would play the British secret agent James Bond.
To celebrate National Vodka Day, a food historian debunks myths and highlights unknown facts about one of America's favorite liquors.
Unmarried parents spend, on average, several hundred dollars less on each child annually.
Single parents and unmarried parents who live together spend less on their children than married parents.
A powerful heat-trapping gas, methane is released from the natural gas delivery infrastructure.
AP Photo/Brennan Linsley
Two energy scholars who have studied the extent of methane leaks in the oil and gas industry explain what rescinding methane emissions regulations will mean to the climate and industry.
Kebakaran hutan terjadi di area dekat Jaci Parana, negara bagian Rondonia, Brasil, tanggal 24 Agustus 2019.
AP Photo/Eraldo Peres
Apa yang menjadi ancaman ketika hutan Amazon, yang merupakan paru-paru Bumi, terbakar? Ilmuwan atmosfer menjelaskan kebakaran yang memang berbahaya tidak berarti oksigen habis di Bumi.
Fire consumes an area near Jaci Parana, state of Rondonia, Brazil, Aug. 24, 2019.
AP Photo/Eraldo Peres
If the Amazon rainforest functions as our planet's lungs, what do raging wildfires threaten? An atmospheric scientist explains why the fires, though devastating, won't suffocate life on Earth.
What factors contribute to some places having many, while other places have few?
Linguists have a lot of largely untested theories. Borrowing a tool from ecology, researchers built a model that didn't look for one worldwide explanation.