Report
by dave levitanBecause utilities can't control when the sun shines or the wind blows, it has been difficult to fully incorporate solar and wind power into the electricity grid. But new technologies designed to store the energy produced by these clean power sources could soon be changing that.
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Report
by phil mckennaMillions of birds migrating between Africa and Europe are being illegally hunted on the Balkan Peninsula, with the most egregious poaching occurring in Albania. Conservationists and the European Commission are calling for an end to the carnage.
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Report
by mike ivesArmed with new high-tech equipment, mining companies are targeting vast areas of the deep ocean for mineral extraction. But with few regulations in place, critics fear such development could threaten seabed ecosystems that scientists say are only now being fully understood.
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Point/Counterpoint
In a Yale Environment 360 debate, author John Frederick Walker and conservationist Mary Rice offer opposing views on whether the global ban on ivory trading should be eased. Walker argues that a partial lifting of the ban would reduce demand for illicit ivory, while Rice insists such a move would only accelerate the slaughter of Africa’s elephants.
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Report
by richard conniffOften mowed and doused with herbicides, power transmission lines have long been a bane for environmentalists. But that’s changing, as some utilities are starting to manage these areas as potentially valuable corridors for threatened wildlife.
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Opinion
by verlyn klinkenborgA grim new census of the world’s dwindling wildlife populations should force us to confront a troubling question: Are humans capable of acting in ways that help other species at a cost to themselves?
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Report
by peter moskowitzThe rise of U.S. oil and gas production has spurred a dramatic expansion of the nation's pipeline infrastructure. As the lines reach into new communities and affect more property owners, concerns over the environmental impacts are growing.
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Tainted Harvest: An e360 Special Report
by he guangwei
Three decades of rapid economic development in China has left a troubling legacy – widespread soil pollution that has contaminated food crops and jeopardized public health. In a three-part series, Yale Environment 360 looks at a grave problem that has been labeled a “state secret” and that Chinese officials are only beginning to acknowledge.
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Analysis
by fred pearceAs negotiators look to next year’s UN climate conference in Paris, there is increasing discussion of a new way forward that does not depend on sweeping international agreements. Some analysts are pointing to Plan B — recasting the climate issue as one of national self-interest rather than global treaties.
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In East Coast Marshes, Goats
Take On a Notorious Invader
Land managers in the eastern U.S. and Canada have spent countless man-hours and millions of dollars trying to tame a pernicious, invasive reed known as
Phragmites australis. Toxic herbicides, controlled burns, and even bulldozers have been the go-to solutions to the problem. But recent research out of Duke University suggests another, less aggressive fix: goats. The approach is finding practical applications, including in New York City, where officials deployed a herd of goats at Staten Island’s Freshkills Park.
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Local weather and large-scale climate trends have the largest impact on the weights of Adélie penguin chicks
An adult Adélie penguin feeds its chick.
— not food availability —
according to researchers at the University of Delaware. Adélie penguins are native to the West Antarctic Peninsula, and their habitat is warming faster than most other parts of the planet. Looking at records dating back to 1987, scientists found that year-to-year changes in local weather — including wind speed, temperature, rain, and humidity — could cause chicks’ weights at the time they leave their nests to fluctuate by up to 7 ounces. That’s often the difference between a surviving and non-surviving chick, the researchers say. Biologists previously thought that food sources and parenting played the largest role in chicks’ health, but
these findings suggest that exposure to elements is more important. The study "calls into question what happens to an ecosystem when you change climate quickly," principal investigator Matthew Oliver said.
Interview: A Call for Climate Goals Other Than Two Degrees Celsius
When international delegates meet in Paris next year to negotiate a new climate agreement, they'll be aiming to keep the global average temperature from rising more than 2 degrees
David Victor
Celsius above pre-industrial levels, the maximum seen by many for avoiding the worst impacts of climate change. But David Victor, a professor of international relations at University of California San Diego, argued in a recent controversial commentary in
Nature that the 2-degree goal is now unattainable and should be replaced by more meaningful goals. In an interview with
Yale Environment 360, Victor explains why he believes the 2-degree threshold has failed to position policy makers to take serious action on climate change and outlines the "basket of indicators" that he and his co-author are suggesting be used instead.
Read the interview.Researchers say they have found a large fallout plume of oil on the seafloor from the 2010 Deepwater Horizon
Deepwater Horizon oil at the surface of the ocean
disaster in the Gulf of Mexico. According to a report in the
Proceedings of the National Academy of Sciences, a portion of the 2 million barrels of oil thought to be trapped in the deep sea after the spill appears to have settled across a 1,250-square-mile patch of the seafloor centered around the Macondo Well, which discharged an estimated 5 million barrels of oil in the nearly three months between its blowout in April and eventual capping in July. The oil is concentrated in the top half-inch of the seafloor, and mostly distributed in patchy deposits to the southwest of the well, the study found. These deposits account for between 4 and 31 percent of the Macondo oil sequestered in the deep ocean, researchers estimate. The rest has likely been deposited outside this area, they say, but has evaded detection so far because of its patchiness.
Forest top soils capture and stabilize nitrogen pollution very quickly but release it slowly, according to new research published in the journal
Ecology. The findings indicate that mature forests may be providing an under-appreciated service by storing excess nitrogen, which can lead to algal blooms and oxygen-depleted dead zones if too much is released into lakes and waterways. Older forests store nitrogen more efficiently than young forests recovering from clear-cuts, the
researchers found, because they have accumulated more top soil and organic matter within the forest floor. Previously, it had been unclear how mature forests continued to capture and store nutrients such as nitrogen after they stopped adding tree biomass. The new research indicates it’s likely due to the delay between nitrogen uptake, which happens within days, and nitrogen release, which unfolds over years and decades.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies.
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Photographer Peter Essick documents the swift changes wrought by global warming in Antarctica, Greenland, and other far-flung places.
View the gallery.
The latest
from
Yale
Environment 360 is now available for mobile devices at
e360.yale.edu/mobile.
The Warriors of Qiugang, a
Yale Environment 360 video that chronicles the story of a Chinese village’s fight against a polluting chemical plant, was nominated for a 2011 Academy Award for Best Documentary (Short Subject).
Watch the video.
Top Image: aerial view of
Iceland. © Google & TerraMetrics.
In a
Yale Environment 360 video, photographer Pete McBride documents how increasing water demands have transformed the Colorado River, the lifeblood of the arid Southwest.
Watch the video.