Pulp and paper production is a major industry with a large environmental footprint. Recently, though, paper companies have worked to reduce pollution and promote sustainable forestry and recycling.
Sea otters had been absent from this Alaskan national park for at least 250 years. By marrying math and statistics, scientists map this animal's successful comeback.
It's all in the presentation: In studies, consumers were more apt to choose fuel-efficient vehicles depending on how the same pieces of information were displayed on labels.
Bio-prospecting is the search for useful materials from natural sources. A biologist explains what we can learn from bacteria about breaking down plant material, and how we can use that knowledge.
Ingredients from shampoo, sunscreens and other personal care products are turning up in water supplies. Some are toxic or cause hormonal damage to aquatic life, and could threaten human health.
How could green groups attract more diverse volunteers? Maybe they could put more time and energy into outreach toward the people most affected by environmental injustices.
Oil production used to fall when prices were low. But a new drilling boom in Alaska, driven by technical advances and global partnerships, spotlights America's rise as a world oil power.
Forests are valuable for many uses, including timber, clean water, wildlife habitat and recreation. Stresses on U.S. forests include wildfires, pest invasions and development of private lands.
The U.S. nuclear industry is struggling to compete with cheap natural gas and manage radioactive waste. Budget cuts and anti-regulatory pressure could worsen things by weakening federal oversight.
To help feed a growing world population, restore biodiversity and slow climate change, a geologist calls for a moon shot effort to restore healthy soil around the world.
Standard methods for removing chemicals from groundwater can be slow and expensive. Now scientists are using electricity to break down long-lived, toxic chemicals called PFASs faster and at less cost.
Why use satellites to study Earth's climate? Researchers leading a new mission explain how images from space will help them analyze which parts of the Americas soak up the most carbon.
Many human-wildlife conflicts are rooted in struggles over land. Some countries, notably Mexico, have found ways to protect both nature and the rights of indigenous people and forest dwellers.
People worry Washington is losing respect for science and even the centuries-old scientific method. Two climate scientists explain how science can be done when talking about the future.
Whether or not farmers believe human activities are changing the climate (many don't), an agriculture specialist urges them to pursue payments for techniques that return carbon to the soil.
Before World War I, petroleum had few practical uses, but it emerged from the war as a strategic global asset necessary for national stability and security.
Former Colorado Gov. Bill Ritter, now leading a clean energy research center at Colorado State University, explains why clean energy will keep growing despite President Trump's focus on fossil fuel.
President Trump says environmental regulation kills jobs. To fight back, conservation advocates need to show that protecting the environment can produce jobs and local benefits.
President Trump's latest executive order weakens or reverses multiple rules and policies designed to slow climate change. Scholars explain the order's impact.
No energy source is perfect, but solar and wind have a much lower health and environmental footprint than fossil fuels, a study finds. Biopower, though, is a mixed bag.
Trump has pledged to invest big in infrastructure. An analysis shows the electric grid will need hundreds of billions of dollars over the next decade just to keep things as they are.
Developed and developing countries alike struggle with water quality problems. For World Water Day, a look at the challenges – and some potential solutions – to better treating wastewater.
Pet food is a multi-billion-dollar industry that consumes huge amounts of animal protein. A veterinary nutrition specialist explains how to feed dogs and cats healthily and sustainably.
Old and degraded infrastructure costs the United States money and puts lives at risk. A civil engineer describes some innovative ways to measure risks and prioritize repairs.
To weigh the economic impact of climate change policies, we need to estimate the social cost of carbon. An economist explains how it's done and why the Trump administration shouldn't end the practice.
Nuclear power was a cornerstone of Japan's energy strategy for decades, until the Fukushima disaster. The current government wants to keep some nuclear reactors open, but has lost public support.
According to widely-cited estimates, world food production must double by 2050 to keep up with population growth. New research challenges this target and calls for balancing growth with conservation.
At a time when poverty and hunger levels are declining around the world, famine is recurring, driven by conflicts and natural disasters. But timely action by governments and aid groups can save lives.
A researcher on sea level rise and climate change impacts reviews Kim Stanley Robinson's new novel, 'New York 2140,' which envisions the city's future in the face of extreme sea-level rise.
March Mammal Madness, a tournament of imaginary contests between pairs of mammals, makes science irreverent and fun. The event has thousands of fans and is used in hundreds of classrooms.
New research shows that exposure to fine particulate air pollution may double the risk of dementia in older women by increasing growth of beta-amyloid plaques in the brain.
Professional surfers have called for culling sharks to reduce the risk of attacks. A shark biologist explains why culling will not work and surfers should accept risk when they enter the water.
Talk of adapting to climate change is less polarizing to conservatives than the idea of slashing emissions.
Republicans in Congress are working to kill an Obama administration rule that broadens public input into federal land use planning. Hunters, fishermen, hikers and environmental groups are opposed.