Many migratory birds, like these sandhill cranes, rely on wetlands for feeding, resting and shelter.
A 2006 Supreme Court ruling created widespread confusion about which wetlands and other waters are federally protected. The Trump administration's latest action isn't likely to clear things up.
Rendering of the ECF Farmsystems facility in Berlin, Germany.
Combining aquaculture and hydroponics, aquaponics unearths value in "waste" flows and re-routes them back into the economy. It's an inspiring example of how a circular-economy business model can work.
The Orbiting Carbon Observatory satellite makes precise measurements of Earth’s carbon dioxide levels from space.
Carbon dioxide makes up less than one-twentieth of 1% of Earth's atmosphere. How does this relatively scarce gas control Earth's thermostat?
Harvesting wheat in the Peruvian Andes.
Peruvian glaciers have shrunk by 25% since 1987, causing water shortages in rural villages. But ancient technology could help manage this precious resource.
Visualization of the Tropical Rainfall Measuring Mission satellite in space over a tropical cyclone.
Climate change threatens the water supply of nations around the world. But it's difficult to measure whether a region has sufficient water to satisfy the people who live there. Could satellites help?
A valuable resource: Snowpack on Oregon’s Mt. Hood.
USDA NRCS/Spencer Miller
New research forecasts that climate change will make multiyear stretches with low snow levels more common across western North America – bad news for water managers, farmers, foresters and skiers.
Micha Berry of the city of Fresno, Calif., which relies heavily on groundwater for its drinking water supply, repairs a groundwater well pump in 2013.
AP Photo/Gosia Wozniacka
Millions of Americans rely on groundwater for their lives and livelihoods, but regulation is piecemeal. A new study maps groundwater wells nationwide and finds that they are drilling steadily deeper.
Sunburnt Victorian fields are set to become more common under climate change.
Hitting the Paris targets will go a long way to securing Melbourne's water supply against future pressure.
Fighting fire during training session.
What exactly is inside those red fire extinguisher canisters, and does it work better than water?
The white “bathtub ring” around Arizona’s Lake Mead (shown on May 31, 2018), which indicates falling water levels, is about 140 feet high.
AP Photo/Ross D. Franklin
Western states adopted a 7-year plan in May 2019 to manage low water levels in the Colorado River. Now they need to look farther ahead and accept that there will be less water far into the future.
Is your community’s water tainted with lead? The data might not have been reported.
Flint's highest recorded lead levels were typical for water systems that report problems. What's more, a number of cities haven't reported their lead issues.
The global water crisis means scientists face urgent decisions on how to foster water managers’ care. Here, the North Saskatchewan River with the Rocky Mountains, Banff National Park.
Imagining how to increase water managers’ empathy for others in a holistic way is critical for our human and planetary future.
Cold water shock explained.
Governments have been reluctant to work towards increased overbank flows, but the Basin needs it to boost its resilience.
The Murray-Darling Basin might not survive future climate change shocks without changes to the plan.
Waves on Lake Superior crash against the Duluth, Minn. waterfront Sept. 10, 2014.
Over the past 20 years, Great Lakes water levels have gone from sustained multiyear lows to multiyear highs. Climate change is accelerating the transition between dry phases and wet phases.
Everything in an animal’s body is made out of cells. And these cells need chemicals, such as salt, in and around them to work properly. The chemical balance needs to be just right.
Alyse & Remi/flickr
Some animals, such as ghost shrimps can even cope with water that is saltier than normal seawater. It's all down to evolution.
How long has that water already been in the system?
In many municipalities, aging water infrastructure is serving fewer people than it was built to accommodate. Out of sight has meant out of mind – but resulting changes in water quality may affect safety.
Melbourne’s water supplies are running low after years of drought.
Water in Sydney is far cheaper than in Melbourne, and residents take full advantage of it.
Many people worry that even properly treated wastewater will make them ill if they wash with or drink it.
Wastewater reuse suffers from a perception problem.
A worker recycling lead in a lead acid battery recovery facility.
National Institute for Occupational Safety and Health
Lead contamination is not just a problem for Flint, Michigan. It is an issue in many regions. One epidemiologist figured out how to measure past lead exposure using treasured biological samples.