In its latest report, the UN's Intergovernmental Panel on Climate Change makes a strong case for a sharp increase in low-carbon energy production, especially solar and wind, and provides hope that this transformation can occur in time to hold off the worst impacts of global warming.
Conservation groups are mounting campaigns to persuade Vietnamese consumers that buying rhino horn is decidedly uncool. But such efforts are likely to succeed only as part of a broader initiative to crack down on an illicit trade that is decimating African rhino populations.
As global population soars, efforts to boost food production will inevitably be focused on the world’s tropical regions. Can this agricultural transformation be achieved without destroying the remaining tropical forests of Africa, South America, and Asia?
Scientists, engineers, and government regulators are increasingly turning their attention to solving one of the chief environmental problems associated with fracking for natural gas and oil – significant leaks of methane, a potent greenhouse gas.
Although it may seem simple, measuring rainfall worldwide has proven to be a difficult job for scientists. But a recently launched satellite is set to change that, providing data that could help in understanding whether global rainfall really is increasing as the planet warms.
A sophisticated and challenging experiment in Antarctica is the latest effort to study ocean acidification in the polar regions, where frigid waters are expected to feel most acutely the ecological impacts of acidic conditions not seen in millions of years.
The mining of Canada’s tar sands has destroyed large areas of sensitive wetlands in Alberta. Oil sands companies have vowed to reclaim this land, but little restoration has occurred so far and many scientists say it is virtually impossible to rebuild these complex ecosystems.
Student and activist groups have been urging universities to take a stand against climate change by divesting from companies that produce oil, natural gas, or coal. In a Yale Environment 360 debate, activist Bob Massie makes the case for divestment as a necessary tool in pushing for action on climate, while economist Robert Stavins argues it would be merely symbolic and have little effect.
Point/Counterpoint: Reviving Extinct Species
A group led by futurist Stewart Brand is spearheading a movement to try to use genetic technology to revive extinct species, such as the woolly mammoth and the passenger pigeon. In a Yale Environment 360 debate, Brand makes the case for trying to bring back long-gone species, while biologist Paul R. Ehrlich argues that the idea is ill conceived and morally wrong.
From forests in Queens to wetlands in China, planners and scientists are promoting a new approach that incorporates experiments into landscape restoration projects to determine what works to the long-term benefit of nature and what does not.
The emerging field of “energy scavenging” is drawing on a wide array of untapped energy sources — including radio waves, vibrations created by moving objects, and waste heat from computers or car exhaust systems — to generate electricity and boost efficiency.
Studying a Polar Menagerie
On an Island in Arctic Russia
Ninety miles from the Russian mainland and 300 miles above the Arctic Circle, Wrangel Island is home to an eclectic assortment of fauna and flora — muskoxen,
Second in a series of blog posts from the Russian Arctic
polar bears, wolves, reindeer, wolverines, walruses, Asia’s only population of snow geese, and 417 plant species. Joel Berger, a field biologist with the Wildlife Conservation Society and the University of Montana, spent several weeks on Wrangel Island this spring. In the second of three blog posts for e360
, he describes the arduous conditions under which Russian and U.S. scientists collect data on the island’s odd assortment of creatures. Read more.
China is planning to build at least 84 major dams in its southwest region, as shown in a map from the Wilson Center, eventually boosting its hydropower capacity by more than 160 gigawatts. By next year China's capacity
will surpass Europe's, and by 2020 it's projected to be larger than that of the U.S. and Europe combined. An interactive map
shows the scale and number of major dams proposed, under construction, existing, and canceled. The dam rush is part of an ongoing effort by China to increase non-fossil energy sources to 11.4 percent of the country's total energy consumption — a goal that has gained urgency due to severe air pollution in many northern Chinese cities. However, the hydropower push is not without its own major environmental consequences
, the Wilson Center notes. The cascades of planned dams will submerge important corridors connecting tropical rainforests to the Tibetan Plateau that allow wildlife to migrate as temperatures rise.
A NASA satellite passing over Russia's Kamchatka Peninsula this week photographed five simultaneous volcanic eruptions
. The erupting volcanoes, from north
to south, are Shiveluch, Klyuchevskaya, Bezymianny, Kizimen, and Karymsky. Karymsky, a 1,536-meter (5,039-foot) peak that has erupted regularly since 1996, is the most active of the five. The tallest, Klyuchevskaya, is 4,750 meters (15,580 feet) high. Of the planet's roughly 1,550 volcanoes that have erupted in the recent geologic past, 113 are found on the Kamchatka Peninsula, in Russia's far northeast, according to NASA. Forty volcanoes on Kamchatka are active, meaning they are either erupting now or capable of erupting at any time. Kamchatka's fiery landscape is driven by plate tectonics: The Pacific Plate is slowly colliding with and sliding beneath the Okhotsk Plate. As the Pacific Plate melts, magma migrates up toward the surface, causing volcanic eruptions.
New semiconductor technology is advancing the development of house windows that could double as solar panels, according to scientists
from Los Alamos National Lab and Italy. Their research into so-called
Solar-harvesting materials under UV light
"quantum dots" — ultra-small bits of semiconductors that transmit energy extremely efficiently and can be tuned toward specific colors — shows that quantum dots can be used in transparent materials to harvest sunlight with efficiencies comparable to standard solar panels. When highly transparent materials are embedded with quantum dots, they are known as luminescent solar concentrators (LSCs); the structures can absorb sunlight and re-radiate it at longer wavelengths directed toward the edge of the slab, where the energy is collected by a solar cell. In tests using large LSC slabs (sized in tens of centimeters), researchers reported harvesting photons at roughly 10 percent efficiency. Typical photovoltaic solar panels have an average efficiency of about 15 percent.
E360 Announces Contest Yale Environment 360
For Best Environmental Videos
is holding a contest to honor the best environmental videos. Entries must be videos that focus on an environmental issue or theme, have not been widely viewed online, and are a maximum of 15 minutes in length. The first-place winner will receive $2,000, and two runners-up will each receive $500. The winning entries will be posted on Yale Environment 360
. The deadline for entries is June 6, 2014. Read further contest information.
Author Wendell Berry wrote about and practiced “sustainable agriculture” long before the term was widely used. His early writings in the 1970s, in which he argued against industrial agriculture and for small-scale, local-based farming, strongly influenced the U.S.
© Counterpoint Press
environmental movement. At age 79, Berry still speaks eloquently about the importance of local communities and of caring for the land, while warning about the destructive potential of industrialization and technology. In an interview with Yale Environment 360
, he talked about his Kentucky farm and why he has remained there, why sustainable agriculture faces an uphill battle, and why strong rural communities are important. “A deep familiarity between a local community and a local landscape is a dear thing, just in human terms,” Berry said. “It’s also, down the line, money in the bank, because it helps you to preserve the working capital of the place.”
Read the interview.
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Yale School of Forestry
& Environmental Studies
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Antarctica and the Arctic
Central & South America
Photographer Peter Essick documents the swift changes wrought by global warming in Antarctica, Greenland, and other far-flung places. View the gallery.
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.