The U.S. energy system is gradually transitioning away from fossil fuels and toward renewables. Will the next president speed up America’s shift to renewable energy or step on the brakes?
Virginia Tech students process water samples from homes in Flint.
Flint Water Study/Facebook
Virginia Tech University engineering students blew the whistle on Flint, Michigan’s toxic drinking water. Hailed as heroes, they’ve also learned that it isn’t easy to do science for the public good.
Traffic jams in cities, such as this one in Atlanta, have economic costs, including lower productivity.
Gregor Smith/flickr
How did lead poisoning become a persistent threat in U.S. cities? Lead paint and slumlords played key roles, but so did postwar housing policies that trapped minorities in crumbling inner cities.
If the U.S. moved to electric vehicles, there would be a substantial cut in air pollution – and health benefits to go with it.
septim/flickr
Global warming is often seen as a problem for future generations, but focusing on the immediate – and substantial – health benefits of clean energy can change public perception of climate change.
Will the world resort to ‘solar radiation management’ to slow the Earth’s heating?
Mark Robinson/flickr
Simon Nicholson, American University School of International Service and Michael Thompson, American University School of International Service
Yes, we blunt the effects of climate change by getting off fossil fuels. But countries’ most ambitious targets imply use of climate engineering schemes – and that discussion should be done in public.
Mayor R.T. Rybak surveys the 2007 Interstate 35 bridge collapse in Minneapolis, Minnesota.
u.s. Coast Guard/Wikimedia
What do U.S. mayors worry about? A recent survey finds that aging infrastructure is a top concern – and many mayors say state and federal agencies hinder their efforts instead of helping.
Author Peter Walker meets with Robert ‘LaVoy’ Finicum at the occupied Malheur National Wildlife refuge on January 20.
Occupier Jason Patrick
A geography professor reports from the front lines of the Malheur occupation. Despite strong local opposition to occupiers, he foresees more conflicts to come.
Productivity hotspots in an otherwise nutrient-poor ocean. High abundances of plankton-eating fish on an Indo-Pacific coral reef.
Zafer Kizilkaya
Scientists say they’ve answered a long-held question of Darwin’s on why islands are so productive – an important step toward planning protections against the effects of climate change.
In addition to the Clean Power Act policy for climate change, the Supreme Court will be hearing cases on the extent of protections under the Clean Water Act.
ex_magician/flickr
A look at Scalia’s decidedly negative legacy on environment reveals how important the next Supreme Court will be on environmental questions, including the EPA Clean Power Plan.
Justice scale and flag.
St. Louis Circuit Attorney's Office/Wikimedia
Many observers have called for criminal prosecutions in Flint, Michigan’s water crisis. A law professor with experience in federal and state government reviews the laws that may have been broken.
Coal Washer, Clay County, Kentucky, 2007.
Jfacew/Wikimedia
The U.S. coal industry is rapidly losing jobs and market share to lower-carbon energy sources. Here we examine what kind of aid can help mining communities transition to a post-coal future.
By putting a temporary halt to Obama’s cornerstone climate policy, the Supreme Court puts the next president in the driver’s seat.
tabor-roeder/flickr
Cara Horowitz, University of California, Los Angeles
Even before the death of Justice Antonin Scalia, the Supreme Court’s stay placed the fate of the EPA Clean Power Plan into the hands of the next president.
Supreme Court justices at the State of the Union: will its surprising EPA decision be seen as an environmental version of the controversial Bush v. Gore?
Reuters
By halting Obama’s cornerstone climate policy before considering its legality, the Supreme Court could further tarnish its partisan reputation.
Lake Mead in Arizona – water demand is outstripping supply in the Southwest as the weather has gotten warmer and the population has grown.
gorbould/flickr
Utilities are pushing back against the spread of rooftop solar power and charging bigger fees to solar homes. Who is right in this solar-versus-utilities fight?
The biggest source of mercury in the U.S. continues to be coal power plants.
booleansplit/flickr
Noelle Eckley Selin, Massachusetts Institute of Technology (MIT) and Amanda Giang, Massachusetts Institute of Technology (MIT)
Politicians rail against the EPA, but economic analysis shows the health benefits of mercury controls – including both higher IQ and heart health – are worth billions of dollars a year.
A White House proposal to tax crude oil would address the U.S.’s perennially underfunded highway maintenance program.
scottummy/flickr
Tristan R. Brown, State University of New York College of Environmental Science and Forestry
Obama’s proposal to add $10 tax to crude oil raises the thorny question of whether the U.S. can continue to fund its highway infrastructure with a fuel tax that hasn’t changed since 1993.
Hurricane Sandy was a turning point on views about climate change, but the effect doesn’t trump political views.
Liz Roll/FEMA
Many Americans move to rural areas to live near nature. But the mere presence of humans changes wildlife behavior in ways that may have ripple effects.
Young secondary forest in Costa Rica, with old-growth trees visible in the background.
Susan G. Letcher
Susan Letcher, Purchase College State University of New York
Forests that grow back after being cleared for agriculture or by logging grow back much faster than old-growth forests, soaking up carbon and providing vital habitat.
Before there was E10, in the 1970s there was ‘gasohol,’ another name for gasoline that had been blended with ethanol.
eklektikos/flickr
Historically, environmental causes enjoyed bipartisan support but gains by NGOs and the emergence of climate change as a social issue have created a sharp political divide.
Supreme Court ruling allows consumers and businesses to make money by reducing power and other grid services.
wilks_photography/flickr