Aeration tanks at the Oaks wastewater treatment plant in New Providence, Penn.
Montgomery County Planning Commission
The 'used water' that flows from our showers, dishwashers and toilets isn't a waste to engineers – it contains valuable materials. The challenge is recovering them and turning them into products.
Even before the British billionaire invested US$1 billion in making the region 'climate-smart,' Jamaica, Barbados and Dominica were pioneering a renewable energy boom in the Caribbean.
In 2004 an underwater avalanche destroyed an oil platform off Louisiana, causing a 14-year spill. An expert on oil and gas seeps in the Gulf of Mexico warns that this could happen in other places.
What raises a common winter storm to the level of 'bomb cyclone'? It's all about rapid, sharp changes in atmospheric pressure – and the scientists who coined the term meant to highlight their power.
Adding industrial chemicals and natural alkaline minerals could slow climate change, but like other geoengineering proposals, it comes with many complex technical and legal challenges.
China, which once processed much of the world's scrap, has slashed imports of "foreign garbage." What can the US do to step up recycling at home?
Many people associate Henry David Thoreau with solitude in the outdoors. But Thoreau understood in the mid-1800s that there was no such thing as nature separate from humans.
Since 2008, Landsat data has been free for the world to use, spurring new applications and scientific research. But that door could soon slam shut.
These youngsters have ample fervor, and they are dramatically photogenic. Dismissing them as being fake or lightweight can spell trouble for members of the establishment.
EPA is moving to regulate two chemicals from a group called PFAS that are contaminating drinking water. A public health expert explains why the agency should take much broader action.
Washington, California and Florida are mulling a permanent switch to DST. Proponents say that doing so could improve health, save energy and prevent crime.
Why do scientists spend so much time and money mapping the DNA of species like white sharks? Single studies may offer insights, but the real payoff comes in comparing many species to each other.
Natural gas supplies are growing, but so are other markets for it besides power generation.
Chemical pollution and hunting pushed Ospreys to the edge of extinction in the mid-20th century. Today, they have rebounded and can be spotted worldwide, often nesting on manmade structures.
Energy storage could prove an inexpensive way for power companies to handle heat waves and other times when consumers use more electricity than usual.
Climate justice policies could potentially double as tools of colonialism that harm people outside the US.
US cities were designed and engineered around cars. Now some are working to increase walking and biking, but the shift isn't easy.
There are precedents regarding power generation and ethanol but no nation has ever achieved as comprehensive and dramatic this fast.
It will be hard and complicated to replace Venezuela's heavy sour crude.
An Obama administration veteran offers some insights from his experience about driving massive increases in clean energy.
It's often more effective, cheaper and less controversial than other efforts to confront climate change.
Urban farming can make it easier for city residents to obtain healthy, affordable food. But to raise big yields from small pieces of land, farmers need training and support.
US agriculture is dominated by large farms that rely on chemical inputs. In contrast, regenerative farming makes land and water healthier by mimicking nature instead of trying to control it.
Whether to attending a conferences or giving in to a meeting, the global research community is keen on air travel. That’s a habit that needs to change.
Can a new government, perhaps by shoring up democracy and oversight, harness this commodity for peace and prosperity?
Dozens of cities, states and nations are enacting bans and restrictions on single-use plastic bags and other items. A legal expert explains how a global treaty could build on these efforts.
The coal, oil and natural gas industries are also connected with human rights violations, public health disasters and environmental devastation.
Polls suggest that the majority of Americans think climate change is real, is caused by humans and needs to be addressed. But climate change isn't a priority when Americans go to vote.
The Trump administration wants to end federal protection under the Clean Water Act for many small streams and wetlands. But as a geoscientist explains, these are critical parts of large river systems.
Marshes, swamps and other kinds of wetlands provide valuable services, such as effective natural flood control. But they are being destroyed for development in many parts of the world.
An atmospheric scientist explains why water can do some strange-looking things at very cold temperatures, and what's different about snowfalls on Mars.
These technologies could turn into a powerful tool for fighting global warming, and they have the potential to address historical climate injustices.
Making electric grids better able to withstand extreme weather events will require teamwork from engineers, researchers and the government.
Life-threatening cold temperatures in the central US are caused by changes in wind circulation in the Arctic that bring cold air south. Climate change could make these events more frequent.
Nearly 1,800 Brazilian dams are at risk of failure, according to the government. Fixing them is expensive – but ignoring aging dams can have considerable social, economic and environmental costs.
Fifty years after a major oil spill in Santa Barbara helped launch the environmental movement, Californians strongly oppose the Trump administration's push to expand offshore drilling.
It's cheaper to prevent biological invasions than to react after they happen. But it's hard to detect invaders while there are still just a few of them. Knowing when and where to look can help.
Climate change is happening and will intensify in coming decades. Some experts say it's time for a triage strategy that focuses investments where they are most likely to have an impact.
Snorkeling off the California coast, a high school student found heaps of golf balls on the ocean floor. With a marine scientist, she showed that golf courses were producing tons of plastic pollution.
What is the best way to conserve US national parks in a climate-altered future? One answer is connecting parks and other public lands, so plants and animals can shift their ranges.
Distrusting large federal bureaucracies isn't reserved for conservatives anymore.
There are ways to reduce the risk of protests like France's yellow vests movement.
Fixes for small pieces of massive problems show that overarching crises may be less hopeless than they appear.
Research into volcanic activity in the waters off Indonesia shows how active this region is and how destructive landslide-caused tsunamis can be.
Researchers unpack the vast impact of plastic on our society – from emerging health worries and pollution to recycling and plastic's contributions to modern convenience.