Rising e-commerce means more delivery trucks and urban gridlock. Lockers at transit centers, where carriers can leave packages for people who live or work nearby, are a potential solution.
Academic rigor, journalistic flair
Christmas and the environment
Both natural and artificial Christmas trees have environmental impacts, but they're not major. What matters most is what happens to the trees after the holidays.
Analysis and Comment
Drivers buy less gas when filling the tank burns holes in their wallets.
Multiple studies have found the overall impact on labor markets to be minor, even if some workers will need new career paths.
The oil-exporting organization may have mustered the political will to cut production, but its disunity remains intact.
A climate scientist has been visiting the same glacier in Peru for years and explains the complex effects its rapid melting is having.
Hundreds of US cities have pledged to meet the carbon reduction targets in the Paris climate accord. Now it's time for them to start showing results.
Thirty percent of global emissions will be generated from democracies governed by populist nationalist leaders who have very different playbooks than more traditional politicians.
The Paris Agreement was a breakthrough in global climate talks, but nations now face major hurdles to meeting long-term emissions goals – and maintaining global support for the deal.
A massive new discovery this summer of miles of corals in deep waters off South Carolina shows how much we have yet to learn about life on the ocean floor.
George H.W. Bush, who pledged to be 'the environmental president,' took a market-based approach to pollution control that helped clear the air. Now some experts think it could work on climate change.
Without an array of ecosystems and species, it's tough for farmers to grow crops or ranchers to raise animals.
The 'thin green line' of resistance against any new infrastructure for shipping oil, gas and coal abroad has won many battles. But it faces a new source of pressure: the Trump administration.
An air pollution expert with years of experience advising federal regulators describes how the Trump administration is speeding up reviews and reducing scientific input.
Some observers have blamed recent wildfires on poor forest management, while others point to climate change. In fact, a climate scientist explains, reducing fire risks means tackling both issues.
Haze from Northern California wildfires has drifted as far east as Philadelphia. Wildfire smoke contains many potentially toxic substances, so anyone exposed to it should take basic precautions.
Forest management is not a cure-all for wildfires, although it can help reduce the chances of massive burns. Making this happen will require broad collaborative efforts and more money.
Vehicles made before 2001 could suffer fuel system or engine damage if they're run on E15.
Sharing seeds was common practice among farmers throughout history until the rise of agribusiness. Now seeds are trademarked and regulated, but there's a new place to get them for free: the library.
The dry, hot, downslope Santa Ana winds of Southern California fan late fall wildfires that have largely traveled through – and are fueled by – homes and other structures.
The head of the World Health Organization calls air pollution 'the new tobacco' because it causes millions of preventable deaths yearly. Fine particle pollution is especially deadly.
The internet makes it easier for discarded stuff to land in someone else's home instead of the dump.
If Iranian crude exports decline further it could make oil and gas prices rise.
But many new governors and members of Congress intend to take action on climate change.
Oysters are big business along the Gulf Coast, but raising them off-bottom – which yields a premium product – is just starting there. Hurricane Michael showed it won't be easy.
These policies, which are designed to slow the pace of climate change, don't have to cost taxpayers, and they do not appear to hinder economic growth.
According to a new study, the oceans have absorbed more heat from climate change than previously thought. This could mean the Earth will warm even faster in the future than scientists have predicted.
Leftover lactose from cheese production shows early promise as a treatment that can help soils retain water and nutrients, making them more resistant to drought.
A study of the social cost of carbon emitted by the shrinking fleet of Texan coal plants suggests that closing more of them down would be good for the climate and public health.
Raising livestock has clear impacts on the environment, but contrary to what many critics say, it is not the biggest driver of climate change.
Many Americans view the Amish as living simply and in touch with the land, but their views about the environment are complicated and not always 'green.'
Despite many claims, nobody knows for sure how the environmental footprint of lab-grown meat compares to livestock. An animal scientist says the issue is not black and white.
Thousands of people are suing Monsanto, claiming that its Roundup herbicide gave them cancer. A California judge has reduced the first damage award but let the verdict against Monsanto stand.
After declining for nearly a decade, the number of hungry people in the world is growing again. Climate change, which is disrupting weather patterns that farmers rely on, is a major cause.
When nations resist compelling reasons to shift from one form of energy to another they can fall behind for an entire generation or more.
The spread of ride-hailing services and autonomous vehicles will lead to higher energy demand, a study finds. Electric vehicles and a much cleaner grid are the only way to avoid more emissions.
The Trump administration is trying to spike a lawsuit against the US government arguing that there's a constitutional right to a stable climate.
Coastal real estate prices appear to be taking a hit, but mostly in neighborhoods with more climate change believers.
There are some good explanations for the mismatch between regional support for climate action and the areas where renewable energy is making the biggest inroads.
Infrastructure systems – roads, water treatment systems, power grid – can't be built the same ways as in the past. What's a better roadmap for the future?
Conservative skeptics of climate change may support projects focused on 'resilience' – for example, preparing a community for future major weather events.
One natural disaster can exacerbate the effects of others – think landslides after wildfires. This means engineers and planners need to rethink how they assess and prepare for risk.
Explaining how carbon taxes and cap-and-trade systems work is simpler than figuring out how high those taxes and caps should be.
A big spill in Michigan's Straits of Mackinac could have devastating consequences. But does replacing the pipeline running beneath it make sense in a warming world?
When people form local networks to take care of resources such as drinking water, they strengthen their communities. Technology can support these efforts and promote learning and innovation.
The National Park Service is moving wolves to Isle Royale in Lake Superior to replenish a small pack on the island. Wolves prey on moose, which are overgrazing the island. It doesn't hurt that they are charismatic.
Exxon Mobil has a clear motive to back a new plan to tax carbon with its clout and money. And a carbon tax that is high enough to work might prove politically impossible to enact.
Hurricanes Michael and Florence have knocked power out for millions of people. Burying power lines could help but the costs are high.
The UN's panel on climate change said that technologies to remove CO2 will be necessary to limit global temperature rise to only 1.5 degrees Celsius. But these techniques are largely unproven.
Hurricanes frequently move inland in the southeast US, causing widespread river flooding, but emergency plans focus on protecting people in coastal communities.
Dairy cows are sensitive to heat, so farmers cool them down with sprinklers and fans. Researchers are designing better, more efficient systems to keep cows comfortable through hot California summers.
Do high fuel economy requirements make the US auto fleet less safe? The Trump administration says yes and is moving to freeze these standards, but auto experts and US car makers disagree.
The return of white sharks to Cape Cod, Massachusetts was a tourism success story – until a shark killed a swimmer. Can the Cape's residents and visitors learn to share the ocean with these apex predators?
Landowners told researchers that they lacked the knowledge, time and money to advocate for themselves, their financial interests and their property in negotiations over drilling leases.
The damage to coal ash sites from Hurricane Florence demonstrates how a community's vulnerability to natural disasters is closely linked to how stringent environmental regulations are.
A hurricane evacuation researcher in South Carolina explains why evacuating when the sun's out actually makes sense.
How do the narrow ribbons of sand that line the Atlantic and Gulf coasts withstand the force of hurricanes? The answer lies in their shape-shifting abilities.
Widespread flooding in North Carolina from Hurricane Florence shows the need for better advance planning in inland areas of the south and mid-Atlantic, especially near rivers.
Lessons learned from Hurricane Andrew in 1992 and the Fukushima disaster in 2011 have changed how utilities brace for big storms.
Don't believe the skeptics or the conspiracy theorists: Weather forecasters can't slant hurricane warnings to make political points.
Hurricanes in the southern US have caused widespread damage inland in recent decades, mainly through river flooding. But evacuations and stormproofing focus almost entirely on keeping people safe on the coasts.
Climate science in the computer age is the pursuit of elite scientists. A historian of science sees an upside to the popular, participatory approach of studying changes to the climate from the 19th century.
US ozone pollution has fallen in recent decades, but exposure to low levels of ozone still has serious effects on human health and well-being.
Thousands died after Hurricane Maria, but it did not have to be that way. Early evidence should have led the government to a much stronger response.
Wetlands are some of the world's most undervalued weapons against climate change. They store huge quantities of carbon – but without better protection, many could soon be drained or paved over.
How do experts know when and where the next big hurricane is going to hit? A look at the complicated science of forecasting.
Taking this step may improve the quality of life for vulnerable people and reduce the amount of air conditioning they use, making their neighborhoods less prone to power outages.
Many students and professors at US colleges and universities want their schools to divest holdings in fossil fuel companies, but it's a hard sell for school administrators.
When a dam comes down this fall, a team of scientists will be there to track the environmental changes.
Paying these CEOs more when oil prices rise means they're rewarded for having good luck.
Taking millions of gallons of water permanently out of the Colorado River amid a prolonged drought would surely start an interstate fight.
Huge fires roared through Yellowstone National Park in the summer of 1988, scorching one-third of the park. Since then the park has been a valuable lab for studying how forests recover from fires.
Many US coastal towns are building defenses to protect against rising seas and storms. This can encourage people to stay in place when they should be moving inland.
Hurricane Harvey swamped much of Houston in 2017, causing more damage than all other US hurricanes except Katrina. But now the city is authorizing construction in zones at high risk for flooding.
Many people board up their houses and stay in place during disasters – but often they aren't prepared to go without water, power or transportation for days or weeks afterward.
The Trump administration's Affordable Clean Energy Plan would help the declining coal industry, but a study shows many coal workers could transition to a new industry – solar – and earn more money.
Trump's energy plan may meet the letter of the law but the Affordable Clean Energy Plan reflects the administration's clear agenda to move slowly or not at all on climate change.
Colombia's coffee industry is at risk due to unpredictable seasons, floods, landslides, droughts and pests. Farmers say they want to learn to adapt to these environmental changes but don't know how.
Incineration of household waste has gotten a bad name, argues an economist, who sees today's recycling crisis as an opportunity to reconsider how the U.S. handles its waste.
Roughly 10,000 tons of plastic enter the Great Lakes every year, and scientists want to know where it ends up. There are some parallels to ocean plastics, but also important differences.
Since China stopped importing 'foreign garbage' in March 2018, scrap – especially plastic – has built up in the US. Will this shock trigger long-overdue investments in plastic recycling here?
Bitcoin is often criticized for using up tons of energy. But its carbon footprint may not be that bad.
Bio-based plastics made from natural sources break down more easily than conventional plastic, without producing toxic byproducts. But for this to happen they have to be composted, not buried in landfills.
Research is yielding strategies for making plastics greener and more sustainable. But without support as they scale up, new versions will struggle to compete with well-established synthetic plastics.
As California reels from another devastating fire season, environmental resource scholars explain how the state – and other fire-prone areas – can better prepare and coexist with wildfires.
Red tide and a blue-green algae outbreak are fouling hundreds of miles of coast, killing fish and driving tourists away from beaches. Some of the causes are natural, but human actions play a big role.
Two business professors spent five years studying Walmart's ambition project to bring sustainability to its millions of budget-conscious customers – a plan that began with the birth of a granddaughter.
With California suffering another devastating wildfire year, more people are wondering about whether and how global warming is contributing. A climate scientist explains.
There's no precedent for selling oil from the Strategic Petroleum Reserve at a time when there's no market-driven reason for doing that.
In 2015, over 320 million tons of polymers, excluding fibers, were manufactured across the globe.
Whether they aim to stop pipelines in Virginia or block Pacific Northwest export terminals, organizers are trying to 'keep it in the ground' to save the climate.
The Ogalalla Aquifer is a vast underground lake that irrigates farms across the US Great Plains. It took thousands of years to fill, but human use could drain it in roughly a century.
Wildland firefighting has always been a risky job, but development in fire-prone areas is making it more dangerous by putting forest firefighters in situations they are not equipped or trained for.
Climate change, development, past forest management policies and current firefighting practices are creating conditions for large, costly wildfires.
Commercial nuclear reactors provide roughly one-fifth of the electricity produced in the US. But they face grave threats to their continued operation.
August 1, 2018 is 'Earth Overshoot Day,' a date coined by the nonprofit Global Footprint Network to publicize overuse of Earth's resources. But their estimates actually understate the problem.
As EVs make more inroads, giving tenants somewhere to plug in their cars could become a selling point.
A perfect storm of climate, forestry, development and fire management trends are driving up the costs of fighting wildfires.
What would you pay to keep trash off your favorite beach, or pollution away from a national park? Economists can tease these values out of our travel choices and use the numbers to help make policy.
What drives the emergence and disappearance of species? By modeling the fundamental processes of evolution and ecology on geographical scales, new research spotlights topography and climatic shifts.
Not only does U.S. law bar price-fixing, there are bipartisan efforts underway to make it possible to sue OPEC members in American courts for antitrust violations.
The Whole Earth Catalog was a blueprint for sustainability that envisioned humans living in balance with nature. Its creative spirit was welcomed in a year riven by war, assassinations and riots.
A historian of wildfires explains the difference between urban and rural fire cultures, and what it means for protecting communities in fire-prone rural areas.
Research and News
The Interior Department is expanding oil and gas leasing on land in six western states that is vital habitat for the greater sage grouse. Lawsuits are certain to follow.
Climate change is shrinking winter snow cover in Northeast forests, which protects tree roots and soil from repeated freezing and thawing. This could stunt tree growth and forest carbon storage.
Ensuring that everyone doesn't charge their cars simultaneously will make a big difference.
Rising seas and groundwater depletion, both driven by climate change, are making soils saltier in many parts of the world. Farmers will need help adapting, especially in developing countries.
Research shows that when Americans are aware of the scale of food waste, and how much energy and water are used to produce food, they support measures to reduce the problem.
Drastic oxygen losses in the world's oceans millions of years ago coincided with mass extinctions. Scientists see this as a warning about how climate change could affect oceans today.
Climate change is shrinking Arctic sea ice and opening the region to ship traffic. Whales, seals and other marine mammals could be at risk unless nations adopt rules to protect them.
Communities that are majority black, Hispanic or Native American are over 50 percent more vulnerable to wildfire compared to other communities.
Big oil and gas companies spent far more fighting this ballot initiative than the measure's supporters did.
Brazil's president-elect wants to roll back environmental laws, saying they hurt rural growth. But preventing Amazonian deforestation has actually made farmland more productive.
In the 'World Climate' simulation, people play delegates to UN climate negotiations and work to strike an agreement that meets global climate goals. Playing it has made thousands want to take action.
Government agencies spend millions of dollars yearly to buy and demolish homes sited in floodplains. But the program is slow, cumbersome and doesn't always help those who need it most.
How should the US spend limited funds for conserving endangered species? A new data tool lets managers compare different strategies so they can allocate money to protect the most species.
Coastal development is destroying marshes, mangroves and other wetlands that provide valuable protection from hurricanes and storms. Research shows these benefits can be worth millions of dollars.
The results of a study that measured public responses to a policy aimed at reducing carbon emissions contradict a common environmental concern.
A new tool called EcoCast helps fishermen in the West Coast figure out where it's best to fish that day.
The ocean floor holds unique information about Earth's history. Scientific ocean drilling, which started 50 years ago, has yielded insights into climate change, geohazards and the key conditions for life.
As climate change alters temperature and precipitation patterns across the US, it is having especially severe impacts on national parks. These changes could happen faster than many plants and animals can adapt.
The fossa, Madagascar's largest predator, is a cat-like carnivore that eats everything from insects to lemurs. Because they are rare and elusive, scientists know very little about them, including how many there are.
Many factors can influence people to evacuate or stay in place when disasters loom. Research using Facebook posts suggests that people with broad social networks are more apt to get moving.
A new law provides flexibility in terms of how the state can meet this new target for the electricity it consumes.
Is 3D printing better for the environment than conventional manufacturing? The jury is still out.
New research shows that injecting wastewater deep underground can cause earthquakes far from the injection site. It also raises questions about which rock layers are the safest injection targets.
The Trump administration wants to step up logging, saying it will benefit wildlife by reducing forest fire risks. But wildfires create habitat for threatened Spotted Owls and many other species.
A jury concluded on Aug. 10 that exposure to the herbicide Roundup caused Dewayne Johnson's cancer and ordered the company to pay $289 million in damages. Thousands more claims are pending.
A new analysis explores what making space for nature means for our global food production systems.
Cells that transmit nerve impulses in the part of elephants' brains responsible for functions such as learning and memory are structured differently from those of any other mammal.
Hundreds of lawsuits against Monsanto contend that its popular Roundup weed killer gave users cancer. But proving this kind of connection is challenging in both science and law.
US national parks protect some of America's most spectacular outdoor settings. But new research shows that ozone pollution levels in the parks are roughly as bad as in major cities.
Many countries collect and store rainwater for use during drought or dry seasons. But this technique is rarely used in the Caribbean, where hurricanes can leave people without water for months.
Many factors can influence people to evacuate or stay in place when disasters threaten. New research using Facebook posts suggests that people with broad social networks are more apt to move.
Energy that otherwise would go to waste might someday power industrial-scale condensation.
This new and more accurate estimate means that replacing coal with natural gas doesn't do as much to reduce climate change as it should.
EPA Administrator Scott Pruitt has proposed steps that would reduce economic benefits to society from new regulations. An economist who worked for Presidents Clinton and Obama calls this a strategy to justify deregulation.
Scientists have found that the bedrock underneath the West Antarctica Ice Sheet has the potential to rebound in response to melting faster than thought, which could act to stabilize the ice.
As atmospheric carbon dioxide levels rise, rice plants produce fewer vitamins and other key nutrients. This could worsen hunger, malnutrition, child stunting and other diet-related health problems.
Fuel economy standards
The Trump administration's move to freeze fuel economy standards reflects a sea change in American energy policy first born during an era of oil shortages and environmental crises.
Law scholars from California unpack the legal questions raised by the Trump administration's plan to roll back mileage standards and revoke California's ability to set more stringent rules.
Sustainable cities
Many US cities are investing in bike infrastructure and shade trees. Properly located, these additions can make streets cooler, cleaner and safer for all users – even those who drive.
They may not say 'climate change,' but many Republican US mayors support clean energy, jobs in renewable industries, and other climate-friendly policies. And so do majorities of their constituents.
Dozens of US cities have launched bike-share programs in the past decade. There have been bumps – critics want wider access, and cities want bikes stored out of the way – but bike sharing is on a roll.
They don't all support the same strategies for coping with it, but US mayors increasingly see climate change as a pressing urban challenge.
Policy
There is simply no credible evidence supporting the contention that America is experiencing a grid emergency.
The Trump administration is reopening a plan negotiated under President Obama to protect Western sage grouse. This could signal to states not to bother working together to protect other endangered species.
EPA Administrator Scott Pruitt wants to change the grounds for setting US air pollution targets. An environmental lawyer explains why Pruitt's approach misreads the law and could roll back decades of gains.
Deriving fuel from trees costs more than wind and solar power and it emits more carbon than coal. There are many heated debates about this kind of energy, known as forest or woody biomass.
The Interior Department is narrowing protection for migratory birds to cover only deliberate harm such as hunting, but not threats like development or pollution that kill millions of birds yearly.
New research shows the size of man-made earthquakes is linked to how deep industry wastewater is injected into the ground.
Nuclear power provides 60 percent of US carbon-free electricity generation, but existing plants are aging and only one is under construction. Should government intervene to keep nuclear energy in the mix?
Wind power
Several states, including Massachusetts and Rhode Island, have developed ambitious renewable energy targets that hinge in large part on getting their power from turbines stationed in the water.
Hurricane season
Research and Expert Database
Editors’ Picks
Reporters who cover environment and natural resource issues are commonly threatened and harassed around the world. Some have been killed for coverage that threatens powerful interests.
Raising livestock has clear impacts on the environment, but contrary to what many critics say, it is not the biggest driver of climate change.
The fossa, Madagascar's largest predator, is a cat-like carnivore that eats everything from insects to lemurs. Because they are rare and elusive, scientists know very little about them, including how many there are.
The ocean floor holds unique information about Earth's history. Scientific ocean drilling, which started 50 years ago, has yielded insights into climate change, geohazards and the key conditions for life.
A big spill in Michigan's Straits of Mackinac could have devastating consequences. But does replacing the pipeline running beneath it make sense in a warming world?
Widespread flooding in North Carolina from Hurricane Florence shows the need for better advance planning in inland areas of the south and mid-Atlantic, especially near rivers.
Several states, including Massachusetts and Rhode Island, have developed ambitious renewable energy targets that hinge in large part on getting their power from turbines stationed in the water.
Many people who live near large-scale livestock farms complain about noxious smells, air and water pollution and health risks. With little help from regulators, they are turning to lawsuits.
In many US cities, ride-hailing apps are luring riders away from public transit and increasing traffic congestion. But with the right rules, they could enhance public transit instead.
The Whole Earth Catalog was a blueprint for sustainability that envisioned humans living in balance with nature. Its creative spirit was welcomed in a year riven by war, assassinations and riots.
The Ogalalla Aquifer is a vast underground lake that irrigates farms across the US Great Plains. It took thousands of years to fill, but human use could drain it in roughly a century.
Red tide and a blue-green algae outbreak are fouling hundreds of miles of coast, killing fish and driving tourists away from beaches. Some of the causes are natural, but human actions play a big role.
Roughly 10,000 tons of plastic enter the Great Lakes every year, and scientists want to know where it ends up. There are some parallels to ocean plastics, but also important differences.
Cells that transmit nerve impulses in the part of elephants' brains responsible for functions such as learning and memory are structured differently from those of any other mammal.
A jury concluded on Aug. 10 that exposure to the herbicide Roundup caused Dewayne Johnson's cancer and ordered the company to pay $289 million in damages. Thousands more claims are pending.
Most Read past week
- The risk of ‘cascading’ natural disasters is on the rise
- Switching to electric vehicles could save the US billions, but timing is everything
- Yes, eating meat affects the environment, but cows are not killing the climate
- Climate change is shrinking winter snowpack, which harms Northeast forests year-round
- Don’t stress about what kind of Christmas tree to buy, but reuse artificial trees and compost natural ones
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