Artificial light has transformed the night sky, a change researchers continue to link to health problems.
Fabio Falchi et al
Study uses satellite data to add to growing evidence that nighttime light exposure raises risk of breast cancer, with the strongest link among young women.
March for Science, Washington, D.C., April 29, 2017.
Why is it so hard to reach consensus about how to slow climate change? Multiple time lags get in the way: some make it hard to convey the risk, while others prolong the search for solutions.
One of the impacts of climate change is an increase in the frequency of heavy rain events.
AP Photo/David J. Phillip
The Trump administration's decision to dismiss or accept a government-prepared climate report will have life-or-death consequences, says a climate scientist involved in the previous report.
Plastic trash on San Francisco’s Ocean Beach.
A new study shows that anchovies – key food for larger fish – are attracted to plastic trash because it smells like food. This suggests that toxic substances in plastic could move up through food chains.
Cooked chicken meat imported from China could end up in U.S. restaurant meals without information about its origin.
China has started exporting cooked chicken meat to the United States. Is it safe to eat? An agriculture extension specialist discusses possible concerns about food safety and contamination.
Having an antagonistic debate over climate change will not shed any more light on the fundamentals of climate science.
Why assembling two teams to debate climate change is all about political spectacle and sowing doubt – and has nothing to do with actual climate science.
After spending $9 billion on a nuclear power plant construction in South Carolina, project developers have pulled the plug.
Nuclear power plants don't just pump out steady, carbon-free electricity; they also help produce the people the US needs for nuclear weapons inspections.
The first U.S. offshore wind farm, near Block Island, Rhode Island, started delivering commercial electricity in December 2016.
AP Photo/Michael Dwyer
When utilities plan investments, they think decades ahead. A recent study shows why power companies should be spending more on renewables despite the Trump administration's tilt toward fossil fuels.
How can we limit urban sprawl?
How do you prevent urban sprawl? Researchers look to a program in New Mexico for an answer.
Are there other ways to get people to engage with climate change?
An experiment in getting people to care about climate change uses slick videos, charismatic scientists and calls to action.
U.S. Army Spc. Pam Anderson applies first-aid medical attention to an elderly man during flood relief operations just outside of Winona, Minnesota, August 20, 2007.
Staff Sgt. Daniel Ewer, U.S. Army
New research shows that older people are especially at risk during and after natural disasters, and may need medical help or other support well after relief operations end.
London plane trees, like these in Cadman Park in Brooklyn, New York, are one of the most popular species for shading urban streets.
How can cities protect residents during heat waves? There's no single solution, but expanding air conditioning, installing passive cooling features in homes and planting shade trees all can help.
Children run through an open fire hydrant to cool off during the kickoff of the 2016 Summer Playstreets Program in the Harlem neighborhood of New York, July, 6, 2016.
AP Photo/Ezra Kaplan
Climate change is making heat waves more frequent and intense around the world. Cities are hotter than surrounding areas, so urban dwellers – especially minorities and the poor – are at greatest risk.
The glass fibers that make up the
Euplectella aspergillum sponge are surprisingly strong and flexible.
Michael A Monn
Bio-inspiration takes cues from natural structures that do certain things very effectively. One example: the strong but flexible fibers that sea sponges use to anchor themselves to the ocean floor.
As more wind turbines have been put in place, the cost of wind energy has gone down.
Dad of T&S
If history is a guide, policies that promote wind power expansion will lead to lower prices – potentially beating fossil fuels in the US by 2030.
To comply with air pollution laws, midwest energy companies built tall smokestacks to displace pollutants. This one at Indiana’s Rockport Generating Station is 1,038 feet high, just 25 feet shorter than the Eiffel Tower.
Trump administration officials argue that states can regulate more effectively than the federal government. But without leadership from the top, federalism may allow red states to avoid acting.
A public worker clears a storm drain in Carson City, Nevada.
Cathleen Allison/AP Photo
The US wants to invest in more infrastructure to handle our rainfall and melted snow. Stormwater credits could help cut costs and protect the environment.
Six million people in Pennsylvania and neighboring states get their drinking water from the Susquehanna River. Major pollution sources include agriculture, urban development and industry.
Nicholas A. Tonelli
America's drinking water infrastructure is aging and needs billions of dollars in upgrades. Two extension educators urge consumers to monitor their water and have it tested if they suspect problems.
Harmful algae bloom in Lake Erie, Oct. 13, 2011.
NASA Earth Observatory
Nitrogen and phosphorus are polluting US waters, creating algae blooms and dead zones. New research confirms that voluntary steps are failing in the Gulf of Mexico and unlikely to work in Lake Erie.
Heavy storms in February caused parts of a California highway to give way.
Rich Pedroncelli/AP Photo
The American Society of Civil Engineers gives US infrastructure a D+. What is it that we're doing wrong?
Healthy soil teems with bacteria, fungi, viruses and other microorganisms that help store carbon and fend off plant diseases. To restore soil, scientists are finding ways to foster its microbiome.
Browns Canyon National Monument, Colorado.
Bob Wick, BLM
Within the next month, the Trump administration may move to abolish or shrink up to two dozen national monuments. Our experts explain why these sites matter and whether presidents can undo them.
Sales of electric vehicles are growing fast, especially in Europe.
Shifting to plug-in cars wouldn't be enough to max out global oil consumption by 2040. But it could help make that happen if cities pitch in and ride-sharing doesn't crowd out public transportation.
Many Americans need reliable public transit to get to school or work.
Many Americans live in transit deserts – areas where demand for transit exceeds the supply. To fix these gaps, we need to find and map them so agencies can add transit options in the right places.
Scientists provide key input to government agencies on issues such as improving oil spill prevention and response after the 2010 Deepwater Horizon disaster.
U.S. Coast Guard
Can federal agencies stack advisory panels with friendly members? Some have tried, but a scientist who has advised many administrations says they will produce bad policies that lack broad support.