e360 digest
Forests


31 Jul 2015: Severe Droughts Affect Forests
And CO2 Storage for Years, Study Shows

Severe drought can affect a forest's growth for up to four years, a period during which it is less effective at removing carbon
Times Square ivory crush

A stressed forest in the southwestern United States
from the atmosphere, a new study reports in the journal Science. Standard climate models have assumed that forests and other vegetation bounce back quickly from extreme drought, but that assumption is far off the mark, the researchers say. Looking at data from more than 1,300 forest sites dating back to 1948, they found that living trees took an average of two to four years to recover and resume normal growth rates after droughts ended. Frequent droughts in places like the western U.S. could significantly impact the ability of forests to sequester carbon, the study found. Researchers aren't sure how drought causes these long-lasting changes, but they say there are likely three causes: Loss of carbohydrate and foliage reserves may impair growth; pests and diseases may accumulate in drought-stressed trees; and lasting damage to vascular tissues impairs water transport.
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Interview: The High Environmental
Cost of Illicit Marijuana Cultivation

As some U.S. states move to legalize marijuana, one issue has been largely ignored in the policy debates: the serious
Mary Power
Mary Power
environmental effects of the marijuana industry. A new paper co-authored by ecologist Mary Power details many of those impacts by focusing on marijuana cultivation in California, where most of the marijuana consumed in the U.S. is grown. In an interview with Yale Environment 360, Power describes how California growers siphon off scarce water resources, poison wildlife, and erode fragile soils. What’s needed, she contends, is legalization of marijuana at the federal level, which would likely drive down marijuana prices. “As long as there is a market that will pay enough to compensate for the brutally hard work they do to grow this stuff in forested mountains,” she says, “then it will keep growing.”
Read the interview.
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01 Jul 2015: Church of England Divests from
Oil Firm Exploring Virunga National Park

The Church of England has divested its holdings in the British oil and gas company Soco International, citing ethical concerns over Soco's attempts to
mountain gorillas

Mountain gorillas in Virunga National Park
drill for oil in Congo's Virunga National Park. The national park, Africa's oldest, is home to the largest surviving populations of endangered mountain gorillas and hippos. The Church of England's investment fund is valued at roughly $10.5 billion, and $2.5 million of that had been invested in Soco International. The move marks only the third time in recent years that the church has divested from a company on ethical grounds. In 2012 it sold its holdings in News Corporation to protest the phone-hacking scandal, and in 2010 it divested from a mining corporation over human rights violations associated with its operations in India.
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Photo Gallery: Scenes From
The Golden Age of Animal Tracking


Scientists are following the lives of animals in more detail than ever before, thanks to a new generation of tracking and tagging devices. From beluga whales that collect data on the Arctic Ocean to ducks that help track the spread of avian flu, data gathered by and about animals is being used to identify conservation hotspots, reduce human-animal conflicts, and monitor the health of the planet. In an e360 gallery, we look at some intriguing projects that have used state-of-the-art animal tracking and monitoring technology.
View the gallery.
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16 Jun 2015: Human Data Can Improve
Ecosystem Service Models, Study Says

Protected forests in Brazil, Costa Rica, Indonesia, and Thailand have prevented the release of more than 1 billion tons
Amazon rainforest

Aerial view of the Amazon rainforest in Brazil.
of carbon dioxide into the atmosphere, an ecosystem service worth at least $5 billion, Georgia State University economists found. Their conclusion about the monetary benefit of those forest protections is based on a new method they derived for valuing services such as carbon capture, conservation, and improvements in air and water quality. Instead of relying on modeling alone, the new method uses interviews and on-the-ground data to see how conservation programs affect human behavior and impact ecosystems. By combining the two types of information — environmental models and social science data — public officials can gain more realistic insights into how a particular policy might affect the environment and the people who interact with it, the researchers write in the Proceedings of the National Academy of Sciences.
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04 Jun 2015: Seven Tiny Frog Species
Are Discovered in Brazilian Forest

Seven new species of a highly miniaturized, brightly colored frog genus known as Brachycephalus have been
new frog species

One of the species of miniaturized frogs.
discovered in the Brazilian Atlantic rainforest, researchers report today. The frog species are restricted to cloud forests in no more than a few adjacent mountaintops, making them highly vulnerable to extinction, the researchers say. The cloud forests they inhabit are particularly sensitive to climatic conditions, and small shifts can cause major changes in the distribution of the forests. The frogs' adaptation to these specific environments prevents them from migrating across valleys as the cloud forest shifts. The long-term preservation of these species might involve not only the protection of their habitats but also more direct management efforts, such as rearing in captivity, the researchers say. Brachycephalus frogs are among the planet's smallest terrestrial vertebrates, with adult sizes often not exceeding 1 cm in length.
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26 May 2015: Officials Uncover “Mass Graves”
Of Illegal Timber in Malaysia Forest Reserve

Malaysian authorities have uncovered timber “mass graves” where illegal loggers attempted to conceal valuable timber

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mass tree graves

Muhaizan Yahya/nst.com
A "mass grave" containing illegally logged timber.
following a government crackdown on unlawful logging that started in February. The sites, located in the Belum-Temengor forest reserve, were revealed after the recent excavation of patches of land roughly the size of football fields, beneath which an estimated two stories of felled trees were stacked. “We believe that about 400 tons of logs worth more than RM1 million ($250,000 USD) were buried at the three locations and the culprits are waiting for the right time to dig them out and sell them,” says Anuar Mohd Noh, assistant commissioner for the Malaysian Anti-Corruption Commission (MACC), which conducted a joint operation with the country’s forestry department to track down illicit logging activities.
Read more.
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22 May 2015: Many Trees in Southeast U.S.
Closely Related to Tree Species in Asia

DNA studies show that more than half the trees and shrubs in southern Appalachia can trace their ancestry to eastern Asia.
dogwood

A flowering dogwood tree
Based on molecular studies of more than 250 species of trees and shrubs from Georgia to Virginia, researchers at Duke University found close ties between East Asian species, such as dogwoods, and species in the southeastern U.S. Forests throughout the northern hemisphere were joined together by the supercontinent Laurasia as recently as 180 million years ago. Then, as the great northern land mass broke into continents, eras of glaciation wiped out various tree species. Forest remnants hung on in China, Japan, small parts of Europe, and Appalachia, which explains the similarity in tree species. The research was published in the American Journal of Botany.
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Interview: A Grassroots Effort to
Save Africa’s Most Endangered Ape

The Cross River gorilla population, with fewer than 300 individuals, has been pushed to the brink of extinction in equatorial
Inaoyom Imong
Inaoyom Imong
Africa. At the center of the fight to save this beleaguered ape population is Nigerian scientist Inaoyom Imong, who comes from the region and knows its forests — and its people — intimately. In a Yale e360 interview, Imong describes the various pressures that have reduced populations of this gorilla subspecies and explains how a few thousand people living in rural Nigeria and Cameroon hold the key to saving this magnificent ape.
Read the interview.
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15 May 2015: Indonesia Extends Major Logging
Moratorium, Which Critics Decry as Weak

Indonesia has extended a major logging moratorium aimed at preserving the archipelago's vast swathes
deforestation in Borneo

Deforestation for a palm oil plantation in Indonesia.
of tropical rainforest, but environmentalists say the logging ban does not go nearly far enough. The country, home to some of the world's most biodiverse rain forests and endangered species such as tigers and elephants, first enacted the moratorium in 2011, banning new logging permits for primary and virgin forests and peatlands. The moratorium was first extended until 2015, and now has been extended again, to 2017. Environmental groups have criticized the moratorium, however, saying that it still allows deforestation for ventures deemed in the national interest, such as infrastructure projects and agricultural plantations. Indonesia is the largest economy in Southeast Asia and third-largest carbon emitter in the world. Huge swathes of its forests have been chopped down by palm oil, mining, and timber companies.
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15 Apr 2015: Entries Invited for e360
Contest For Best Environmental Videos

The second annual Yale Environment 360 Video Contest is now accepting entries. The contest honors 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. Videos that are funded by an organization or company and are primarily about that organization or company are not eligible. The first-place winner will receive $2,000, two runners-up will each receive $500, and all winning entries will be posted on Yale Environment 360. The contest judges will be Yale Environment 360 editor Roger Cohn, New Yorker writer and e360 contributor Elizabeth Kolbert, and documentary filmmaker Thomas Lennon. The deadline for entries is June 15, 2015.
Read more.
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30 Mar 2015: Warming Winters Not Main
Cause of Pine Beetle Outbreaks, Study Says

Milder winters can't be blamed for the full extent of recent mountain pine beetle outbreaks in the western United States, according
pine forest

Pine forest affected by mountain pine beetles
to a new study by Dartmouth and U.S. Forest Service researchers. Winters have been warming across the western U.S. states for decades, as overall the coldest winter night has warmed by 4 degrees C since 1960. But that warming trend could only be the primary driver of increasing pine beetle outbreaks in regions where winter temperatures have historically killed most of the beetles, such as in the Middle Rockies, eastern Oregon, and northern Colorado, the study says. Warming is unlikely to have played a major role in other regions since winters were rarely cold enough to kill the beetles, according to the study published in the journal Landscape Ecology. Other factors — including changes in the pine beetles' seasonal development patterns and forestry practices that have influenced pine density and age — were likely more important, the authors say.
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24 Mar 2015: Extreme Forest Fragmentation
Documented in Comprehensive New Study

Fragmentation of the world’s forests has become so severe that 70 percent of remaining woodlands are now within 1 kilometer of a road or other form of development, according to a new study. Using the world’s first high-resolution satellite map of tree cover, as well as an analysis of seven long-term fragmentation studies, researchers showed that the ongoing destruction of global forests is decreasing biodiversity by as much as 75 percent in some areas and adversely affecting the ability of forests to store carbon and produce clean water. The study, published in the journal Science Advances, found that 20 percent of the world’s forests are just 100 meters from a human-created “edge.” Even many parks and protected areas have undergone fragmentation, the study said. The few remaining large, virgin tracts of forest are found in parts of the Amazon, Siberia, Congo, and Papua New Guinea.
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Back from the Brink: Success Stories
Of the U.S. Endangered Species Act


A small minnow known as the Oregon chub recently became the 29th species to recover after being listed as endangered under the U.S. Endangered Species Act and the first fish to ever join those ranks. The Endangered Species Act, signed into law in 1973, is widely considered one of the most important pieces of U.S. environmental legislation ever enacted. This e360 photo gallery highlights the 21 species native to the United States, including the bald eagle (above), that have made recoveries strong enough to be removed from the endangered list.
Read more | View gallery of recovered species
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Interview: What Lies Behind the
Surge of Deforestation in Amazon

Ecologist Philip Fearnside has lived and worked in the Brazilian Amazon for 30 years and is one of the foremost authorities on
Philip Fearnside
Philip Fearnside
deforestation in the world’s largest tropical forest. A professor at the National Institute for Research in the Amazon, Fearnside is now watching with alarm as, after a decade of declining deforestation rates, the pace of cutting in the Amazon is on the rise again. In an interview with Yale Environment 360, Fearnside explains the factors behind the resurgence in deforestation and warns that the Amazon will sustain even graver losses if Brazil’s newly re-elected President Dilma Rousseff — who is backed by large landowners and agribusiness interests — doesn’t change course.
Read the interview.
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03 Mar 2015: Photographs of Amazon Forest
Added to Google Street View Collection

Detailed views of the Amazon rainforest, its rivers, and indigenous communities are the latest additions to Google's

Enlarge
Boaters on Rio Negro

Boaters on the Rio Negro
"Street View" collection, the company announced this week. The imagery — captured while boating down 500 kilometers of rivers, walking along 20 kilometers of trails, and ziplining through dense forest — reveals stunning views of the Amazon from the top of its canopy to the forest floor. The photos also capture daily life in 17 communities of local people who live deep within the rainforest and along the Rio Mariepauá, one of the Amazon River's largest tributaries. The images were collected in partnership with the conservation organization Amazonas Sustainable Foundation, which hopes that sharing in-depth photographs of the area will help promote conservation efforts.
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17 Feb 2015: Demand for Indonesian Timber
Far Outpaces Sustainable Supply, Study Says

More than 30 percent of wood used by Indonesia’s industrial forest sector stems from illegal sources rather than
deforestation for palm oil plantation

Deforestation in Aceh, Indonesia, for palm oil.
well-managed logging concessions or legal tree plantations, according to a new report based on data from industry and the Indonesian Ministry of Forestry. If Indonesian forestry industries operated at capacity, 41 percent of the wood supply would be illegal, the analysis found, and if companies were to go forward with plans for new mills, the supply would be 59 percent illegal. The source of this illegal wood is unclear, but the report suggests it is likely harvested by clear-cutting natural forests for new oil palm and pulp plantations. Part of the problem, the report says, is that Indonesia's sanctioned forestry plantations — the country's primary source of legal wood — are not currently sustainable because they are producing wood at only half the predicted rate.
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12 Feb 2015: Mange in Yellowstone Wolves
Documented Through Thermal Images

Researchers with the U.S. Geological Survey are using thermal video cameras to study how mange is affecting
wolf with mange

Thermal image of a wolf with mange on its legs.
wolves in Yellowstone National Park, as shown in this video. Mange is a highly contagious skin disease caused by mites that burrow into the skin of dogs and wolves, causing infections, hair loss, irritation, and intense itching. The urge to scratch can be so overwhelming that the wolves neglect resting and hunting, researchers say, leaving them vulnerable to hypothermia, malnutrition, and dehydration, which can eventually lead to death. Thermal imagery allows scientists to document the extent of hair loss and the actual loss of heat associated with different stages of infection. Red patches on a wolf's legs, as shown in this image, indicate rapid heat loss caused by mange.
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28 Jan 2015: Camera Trap Records Rare
Glimpse of African Golden Cat Hunting

An African golden cat, one of the least known and most elusive wild cats on the planet, has been filmed hunting in

African golden cat
Kibale National Park, Uganda, for the first time, scientists say. In the video, which was recorded by a camera trap, an African golden cat darts toward a group of red colobus monkeys feeding on a tree stump. The cat's attack is nearly too fast to be seen in real-time, but viewing the footage in slow-motion highlights the cat's swiftness and accuracy — even though its ambush failed to land a meal. The African golden cat is found only in the forests of central and West Africa, and it is threatened across its range by intensive bushmeat hunting and habitat loss. Researchers say the video provides important details about the African golden cats' hunting behavior that have never before been directly observed.
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Interview: Giving Local Women
A Voice in Grass-Roots Conservation

The roles of women in traditional societies can be quite different from men’s, and their knowledge of the
Kame Westerman
Kame Westerman
natural world and the way in which conservation projects affect them may also be different. But these variables aren’t necessarily taken into account when developing such projects. The results can range from missed opportunities to project failure. Earlier this year, Conservation International began piloting guidelines to help integrate gender considerations into its community projects — an initiative that Kame Westerman, the "gender advisor" for that organization, helped develop. In an interview with Yale Environment 360, Westerman discusses these guidelines, as well as the perils of ignoring gender when planning conservation initiatives.
Read more.
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18 Dec 2014: Clearing Rainforests Distorts
Global Rainfall and Agriculture, Study Says

Clearing forests not only releases carbon into the atmosphere, it also triggers worldwide shifts in rainfall and temperatures

Enlarge

Global effects of forest loss
that are just as potent as those caused by current carbon pollution and that pose great risk to future agricultural productivity, researchers report. Deforestation in South America, Southeast Asia, and Africa may alter growing conditions in agricultural areas as far away as the U.S. Midwest, Europe, and China, the study in Nature Climate Change finds. The researchers calculate that complete tropical deforestation could trigger atmospheric changes leading to an increase of 0.7 degrees Celsius in global temperatures, in addition to warming caused by greenhouse gases released from the deforestation itself. That would double the observed global warming since 1850, the researchers note. They say their findings indicate that many of the predicted changes associated with widespread deforestation are already occurring — from Thailand, which is receiving less rainfall at the beginning of the dry season, to parts of the Amazon, where once-predictable rainfall has shifted notably.
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08 Dec 2014: Latin American and Caribbean
Nations Pledge Major Forest Restorations

Latin American and Caribbean countries yesterday launched Initiative 20x20, an effort to begin restoring

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Forest restoration commitments
20 million hectares of degraded land — an area larger than Uruguay — by 2020. The initiative has secured $365 million in funds, its leaders announced, which will be used to restore forests, avoid deforestation, and improve the use of trees and livestock in agriculture — practices known as agroforestry and silvopasture. This restoration is expected to provide extensive economic, social, and environmental benefits through improved local livelihoods and ecosystem services such as erosion prevention, water purification, and carbon storage, organizers say. Restoration commitments totaling just over 20 million hectares were announced yesterday, with Mexico and Peru making the largest pledges. The initiative was launched in Lima, Peru, alongside international climate talks.
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17 Nov 2014: Old-Growth Forest in China
Shrinking Despite Protections, Study Says

China’s anti-logging, conservation, and ecotourism policies are actually accelerating the loss of old-growth forests

Deforestation in China's Yunnan Province.
in one of the country's most ecologically diverse regions, according to a study published in the journal Biological Conservation. Researchers used satellite imagery and statistical analysis to evaluate forest conservation strategies in northwestern Yunnan Province, in southern China. The results show that a logging ban increased total forest cover but accelerated old-growth logging in ancient protected areas known as sacred forests. For centuries, sacred forests have effectively protected old-growth trees from clear-cutting, despite major upheavals in the region’s history. Recent environmental protection policies, however, have shifted management of these areas away from native communities to government agencies — apparently to the forests' detriment, the study shows.
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11 Nov 2014: New Mapping Tool Highlights
Carbon-Trapping Forests in Peru

A new, high-resolution mapping technique can be used to help identify and prioritize tracts of forest land with the highest

Enlarge

Greg Asner
Map of carbon storage potential of land in Peru
carbon-sequestering potential, according to research published in the Proceedings of the National Academy of Sciences. In the study, researchers with the Carnegie Institution for Science applied the technique, which integrated satellite imaging data and advanced, three-dimensional forest mapping information, to the 128 million hectares that comprise the nation of Peru. The analysis considered each landscape's unique climate, topography, geology, and hydrology to produce a map showing a range of landscapes with varying carbon densities — a potentially crucial tool as nations prepare to negotiate global forest protections as part of United Nations climate talks next month Lima, Peru.
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27 Oct 2014: Forests Protect Waterways
From Nitrogen Pollution, Researchers Find

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.
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23 Oct 2014: Drones Can Help Map Spread
Of Infectious Diseases, Researchers Say

Aerial drones can help track changes in the environment that may accelerate the spread of

Researchers in Malaysia program a drone
infectious diseases, an international team of researchers writes in the journal Trends in Parasitology. Land use alterations, such as deforestation or agricultural changes, can affect the movement and distribution of people, animals, and insects that carry disease, the authors explain. One drone project, for example, tracked changes in mosquito and monkey habitats in Malaysia and the Philippines. By combining land-use information collected by drones with public health data, researchers there are hoping to better understand how changes in the environment affect the frequency of contact between people and disease vectors like mosquitoes and macaques, both of which can harbor the malaria parasite.
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16 Oct 2014: Global Boom in Natural Gas
Unlikely to Help the Climate, Study Suggests

Increasing global supplies of unconventional natural gas will not help to reduce the overall upward trajectory of greenhouse gas emissions and the planetary warming that comes with it, according to a new study published in the journal Nature. The findings further undercut the notion, long touted by proponents of natural gas, that the fuel — which emits less CO2 than coal when burned — represents an important "bridge" in the transition to low-carbon energy resources. The study, which synthesized models developed by numerous researchers working independently, suggested atmospheric greenhouse gas concentrations over the next 35 years would remain virtually unchanged — and in some models, warming would be worsened — by increased natural gas production. This was in part attributed to the fact that the new gas supplies would provide a substitute not only for coal, but also for low-emissions technologies like nuclear power and renewables.
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E360 Video Winner: Intimate Look
At the Bighorn Sheep of the Rockies


“Peak to Peak,” the third-place winner of the Yale Environment 360 Video Contest, focuses on a herd of bighorn sheep in Montana and features remarkable scenes of lambs as they gambol along the slopes of the northern Rockies. Produced by Jeremy Roberts, the video follows a field biologist as he monitors the sheep and talks about the possible impact of climate change on the animals’ future.
Watch the video.
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E360 Video: Indonesian Villagers
Use Drones to Protect Their Forest


The villagers of Setulang in Indonesian Borneo have enlisted a new ally in their fight against the illegal clearing of their forests for oil palm plantations: aerial drones. The indigenous Dayaks manage the surrounding forest conservation area, and they are hoping the drones can help them ward off illegal oil palm operations and protect their land. “Dayaks and Drones,” a video produced by Handcrafted Films, chronicles how the villagers teamed up with an Indonesian nonprofit to learn how to program and operate drones. Equipped with GPS technology, the small drones photograph the forest and monitor the area for illegal activities.
Watch the video.
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30 Sep 2014: Half of the Planet's
Animals Lost Since 1970, Report Says

The number of animals on the planet has fallen 52 percent in the last 40 years, according to an analysis by

Enlarge

Animal population trend since 1970
the conservation organization World Wildlife Fund (WWF). The group's Living Planet Index, which tracked the populations of more than 10,000 vertebrate species from 1970 to 2010, revealed major declines in key populations of mammals, birds, reptiles, amphibians, and fish. The situation is most dire in developing countries, the report said, where wildlife populations have fallen on average by 58 percent. Latin America saw the biggest declines, with more than 80 percent of the region's animals lost since 1970. Globally, freshwater populations have plummeted 76 percent. This year's numbers are worse than those calculated in the last report in 2012, which found declines of 30 percent since 1970. The organization attributed this to new statistical weighting, which it said better represents each region's biodiversity, though other researchers have been critical of the new methodology. Habitat loss and degradation was cited as the primary cause of biodiversity loss.
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A three-part series Tainted Harvest looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup.
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