11 Jan 2016:
Scientists Warn of Biodiversity
Impacts of Major Hydropower Projects
Hydropower is considered by many to be a key ingredient to reducing carbon emissions and meeting global climate goals,
The Belo Monte dam under construction in the Amazon
but it comes at a great cost to biodiversity, particularly in tropical rainforests, according to a new report
published in the journal Science
. “Far too often in developing tropical countries, major hydropower projects have been approved and their construction begun before any serious assessments of environmental and socioeconomic impacts had been conducted,” says the report's lead author Kirk Winemiller, an aquatic ecologist at Texas A&M University. The dam-building rush, with more than 450 dams planned for the Amazon, Congo, and Mekong river basins alone, impedes tropical fish migration and vastly expands deforestation due to road construction, according to the authors. Other concerns include development of previously inaccessible terrain, as well as methane emissions from newly built reservoirs.
09 Oct 2015:
‘Land Grabbing’ Is Accelerating
As Pressure on Agriculture Resources Grows
An area about the size of Japan — roughly 140,000 square miles — has been purchased or
A land-grabbing operation in Uganda
leased by foreign entities for agricultural use during the last 15 years, according to a report
by the Worldwatch Institute. An additional 58,000 square miles are under negotiation, the report found. “Land grabbing,” a term for the purchase or lease of agricultural land by foreign interests, has emerged as a threat to food security in several nations. Globally, over half of this land is in Africa, especially in water-rich countries like the Congo. The largest area acquired in a single country is in Papua New Guinea, with nearly 15,500 square miles (over 8 percent of the nation’s total land cover) sold or leased to foreign entities. Foreign purchase of land in developing countries has surged since 2005 in response to rising food prices and growing biofuel demand in the U.S. and the European Union, as well as droughts in the U.S., Argentina, and Australia. “Essentially no additional suitable [agricultural] land remains in a belt around much of the middle of the planet,” writes Gary Gardner, a contributing author to the report.
07 Oct 2015:
Africa Can Increase Renewable
Energy Use Four-Fold by 2030, Study Finds
The African continent could generate nearly a quarter of its energy needs from renewable sources by 2030, according to a report
Solar PV minigrids serving 30 villages in Mali
by the International Renewable Energy Agency
(IRENA). The report identified potential renewable energy sources — including solar, biomass, hydropower, and wind resources — equivalent to more than 375 million tons of coal. While half of energy use in Africa today involves traditional biomass consumption, the report estimated that a shift to renewable-energy cooking solutions would reduce traditional cook stove usage and the resulting health complications from poor indoor air quality, leading to savings of $20 to 30 billion annually by 2030. In the African power sector, the share of renewable sources could increase to 50 percent by 2030, reducing carbon dioxide emissions by more than 340 million tons, the IRENA report says.
30 Sep 2015:
New Agreement Yields Hope for
Saving World's Second-Largest Rainforest
In advance of the Paris climate talks, European and African countries announced
an initiative to stem the rising tide of forest destruction in Central Africa, one of the world’s last large expanses of rainforest. Norway is the first country to pledge funds to the Central African Forest Initiative (CAFI) — up to $47 million dollars per year through 2020 — to support the program. The agreement calls for the six participating Central African countries — Cameroon, the Central African Republic, the Democratic Republic of Congo, Equatorial Guinea, Gabon, and the Republic of Congo — to devise national investment plans that will tackle complex factors leading to deforestation, and it prioritizes long-term solutions over short-term, one-time actions. Central Africa is home to the world's second-largest tropical forest, but the region is increasingly under threat, mostly from small-scale slash-and-burn agriculture. Its preservation is key to global efforts to slow climate change, scientists say.
10 Sep 2015:
Developing Nations Take Lead In
Cutting Forestry and Agriculture Emissions
Countries with the most potential to slash emissions from agriculture and forestry are skimping on climate commitments, while some developing countries are making the boldest and most detailed pledges for cutting land-use-related emissions. That is the conclusion of a new analysis
of climate pledges from China, Canada, Ethiopia, and Morocco by the Union of Concerned Scientists (UCS). Major opportunities to cut forestry and farming emissions exist for Canada and, especially, China, the report says. For example, UCS recently found that China could cut CO2 emissions by 1.2 gigatons per year by 2020, but its climate pledge fails to indicate how the country would do that. Canada’s climate pledge is also vague and unambitious, the report says. In contrast, Ethiopia and Morocco have released detailed and ambitious pledges, especially regarding agricultural emissions. An earlier UCS analysis also found that Mexico’s land-use-related climate pledges exceed those from the European Union and the United States.
25 Aug 2015:
Endangered Chimp Population
Much Larger Than Estimated, Study Shows
A population of endangered eastern chimpanzees in Uganda is actually significantly larger than scientists had thought, new research
from the University of Southern California shows. Using DNA from fecal samples, the scientists estimated the size of the chimp population living in two reserves in western Uganda to be 250 to 320 chimps, divided among at least nine communities, whereas previous estimates had pegged the total at roughly 70. Because the forest they live in is not protected, however, the chimpanzees have been heavily impacted by forest fragmentation, and the fruit trees they rely on are rapidly being cut down, the researchers say. The eastern chimp population that lives in this region is important because it represents the growing status quo for this species, the researchers note — they no longer inhabit unbroken swaths of forest, but instead carve out an existence in shrinking forest patches.
29 Jul 2015:
Global Population Projected to
Reach 11 Billion by 2100, U.N. Estimates
The current world population of 7.3 billion is expected to reach 8.5 billion by 2030, 9.7 billion by 2050, and 11.2 billion in 2100,
according to a United Nations report
released today. The revised U.N. estimates counter previous projections, which had said that global population would peak at roughly 9 billion by 2050, then gradually decline. Most growth will occur in developing regions, the new report says, especially Africa, which is expected to account for more than half of the world’s population growth between 2015 and 2050. India is expected to become the most populous country, surpassing China around 2022. Nigeria could surpass the United States by 2050, which would make it the third-largest country in the world, the United Nations projects.
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 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.
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
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.
Canine Conservation: Using Dogs
In War Against Poachers in Kenya
In Kenya’s Ol Pejeta Conservancy — home to some of the most endangered subspecies of rhinoceros — officials are deploying a new weapon to combat rampant rhino poaching: highly trained K-9 dogs. Six Belgian Malinois tracking and attack dogs are now working with Kenyan rangers to protect tiny populations of northern white rhinos and eastern black rhinos, which have been hunted to near-extinction by poachers seeking rhino horn for supposed medicinal purposes. Overseen by a former military dog instructor with the U.K. Royal Army Veterinary Corps, the K-9 units are being deployed not only in Ol Pejeta but also in a Tanzanian park that has been plagued by poaching. Read the article.
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.
27 Jan 2015:
Pollinator Loss Could Put
Poor Nations at Risk for Malnutrition
Declining pollinator populations could leave as many as half of the people in developing countries facing nutritional deficiencies, according to
researchers from the University of Vermont and the Harvard School of Public Health. In the study — the first to link pollinator declines directly to human nutrition — researchers collected detailed data about people's daily diets in parts of Zambia, Mozambique, Uganda, and Bangladesh. They found that in Mozambique, for example, many children and mothers are barely able to meet their needs for micronutrients, especially vitamin A, which is important for preventing blindness and infectious diseases. Fruits and vegetables were an important source of that nutrient for many people in the study, and those crops are highly dependent on pollinators, researchers say — for example, yields of mangoes, which are high in vitamin A, would likely be cut by 65 percent without them. Pollinator losses might also lead to folate deficiency, they say, which is associated with neural tube defects.
23 Jan 2015:
South Africa Relocates Rhinos
After Record Number Were Poached in 2014
Unable to curb poaching of rhinos within its borders, the South African government has relocated 100 rhinos
A white rhino in Kruger National Park.
in an effort to stem the illegal slaughter of the animals, Reuters reports. For security reasons, officials did not reveal to which countries the rhinos had been relocated. An additional 56 rhinos were moved from poaching hotspots within South Africa's Kruger National Park — where two-thirds of the killings happen — to an "intensive protection zone" within Kruger, officials said. Poachers killed a record number of the animals in South Africa last year — 1,215 rhinos, up 20 percent from the 2013 total — and 49 have been killed so far this year. The animals are hunted intensely because their horns, which some Asian cultures incorrectly believe contain medicinal properties, are worth an estimated $65,000 per kilogram on the black market.
12 Jan 2015:
Maasai Group Plans to Sell
Biogas Made From Slaughterhouse Waste
A group of Maasai farmers in southwestern Kenya has developed a profitable way to convert animal waste and
A Keeko Biogas cylinder prototype
blood from a local slaughterhouse into biogas that can power the facility as well as other local businesses, Reuters reports
. The Keeko Biogas project plans to start bottling the fuel and selling cylinders of it in March, once safety testing has been completed, project leaders say. At roughly $8 per 6-kilogram cylinder, the biogas is about half the price of liquefied petroleum gas, and it can be up to 40 percent more energy efficient than propane or butane, says the Kenya Industrial Research and Development Institute, which is providing technical support for the project. The facility will be able to produce 100 to 300 cylinders of biogas per week, organizers say. The project will not only offset the costs of waste management for the slaughterhouse, it will also likely help prevent deforestation in the region. "We cut down a lot of trees for charcoal and we hope to reduce that,” the chairman of the slaughterhouse told Reuters.
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
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.
24 Nov 2014:
Record Number of Rhinos Poached In South Africa, Government Says
South African officials have announced that 1,020 rhinos have been killed so far in 2014 — a total that
White rhino in South Africa
surpasses last year’s record slaughter of 1,004 of the endangered animals. Poaching has been on the rise in South Africa, home to the world’s largest population of rhinos, since 2007, when only seven rhinos were killed. The sharp increase is occurring despite steps by the government to improve enforcement and introduce new technologies and intelligence-gathering methods to curb poaching, Mongabay reports
. As of 2010, South Africa was home to more than 18,000 white rhinos — over 90 percent of the global population — and nearly 2,000 black rhinos. The animals are being killed for their horns, which are in high demand in China and Vietnam for their supposed, but unproven, medicinal qualities.
07 Nov 2014:
Organized Chinese Crime Behind Tanzania's Elephant Slaughter, Report Says
Chinese-led criminal organizations have been conspiring with corrupt Tanzanian officials to traffic huge amounts
Poached elephant skull in Selous Reserve
of ivory — a trade that has caused half of Tanzania’s elephants to be poached in the past five years — according to a report
by the London-based Environmental Investigation Agency. In some cases, Chinese military officials appeared to be complicit in the illegal activities, the report says, and in other instances, prominent Tanzanian businessmen and politicians helped protect ivory traffickers. Tanzania is the largest source of poached ivory in the world, and China is the largest importer of smuggled tusks, according to EIA. Tanzania’s famed Selous Reserve saw its elephant population plunge by 67 percent in four years, from 50,000 animals to 13,000. Tanzania appears to have lost more elephants to poaching during this period than any other country, EIA said.
E360 Video Winner: Intimate Look
“Peak to Peak,”
At the Bighorn Sheep of the Rockies
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.
23 Sep 2014:
Food Security Issues Often
Neglected After Extreme Weather Events
Extreme weather events — the sort likely to arise with increasing frequency as the planet warms — took a heavy toll on Russia and East Africa in 2010 and 2011, in large part because governments and authorities were ill-equipped to address resulting food shortages and other fallout, according to researchers at the University of Oxford. Russia experienced a heat wave that led to food hoarding and price-fixing of staple crops by speculators, according to the report, which was commissioned by Oxfam
. A drought in East Africa in 2010 through 2011 was tied to an uptick in armed conflicts in the region, which interrupted international and domestic aid for six months. Crop prices reached record levels in several markets, including wheat in Ethiopia, maize in Kenya, and red sorghum grain in Somalia, the report notes. Investing in additional health facilities, establishing pre-positioned food supplies, and other tactics aimed at mitigating the effects of future heat waves, droughts, and floods, could help to blunt the effects of climate change on the poorest and most vulnerable populations, the researchers say.
19 Sep 2014:
Global Population on Track to
Reach 11 Billion by 2100, Researchers Say
A new analysis of United Nations global population data finds an 80-percent probability that the number of
people in the world, now 7.2 billion, will increase to between 9.6 and 12.3 billion in 2100. Published in the journal Science
, the study counters the widely accepted projection that global population will peak at roughly 9 billion by 2050, then gradually decline. The new study instead finds a 70-percent likelihood that population will grow continuously throughout the century to reach 10.9 billion by 2100. Researchers attribute the higher projections, in part, to increasing fertility rates in sub-Saharan Africa, where population growth had been predicted to continue slowing. The Guardian
notes that many widely cited global policy assessments, such as recommendations from the Intergovernmental Panel on Climate Change, assume a population peak by 2050.
03 Sep 2014:
Mobile Phone Networks Can
Help Monitor Global Rainfall, Study Says
New research shows
that mobile phone networks, which cover 90 percent of the world's population, can help track rainfall events — a task that has proven difficult for both advanced satellite systems
and ground-level observation networks. By compiling data on signal disruptions from mobile phone networks in Burkina Faso in West Africa, a team of researchers was able to calculate with 95 percent accuracy both the location and volume of rain that fell, even during short-lived storms, according to a report in Geophysical Research Letters
. Mobile phone companies maintain detailed records on signal disruptions, which can occur when water droplets block and deflect signals between antennae, to determine whether their networks are functioning properly. By tapping into those records, researchers could distill data on rainfall events at extremely fine spatial and temporal scales. As mobile phone networks expand across the globe, such data could be used to create highly accurate rainfall maps, researchers say, although gaining access to records could prove difficult.
24 Apr 2014:
Browning of Congo Rainforest
Is Depicted in NASA Satellite Data
Persistent drought has taken a major toll on Africa's Congo rainforest, with large-scale browning intensifying and affecting a growing portion of the forest over the past decade, an analysis of NASA satellite data shows
browning trend significantly dwarfed smaller areas of "greening" — a satellite-derived indicator of forest health — during April, May, and June each year from 2000 to 2012, according to research published in Nature
. The browning of Congo's rainforest is significant, researchers said, because most climate models forecast that tropical forests may face increasing stress and rainfall shortages in a warmer and drier 21st century. A continued drying trend might alter the composition and structure of the Congo rainforest, affecting its biodiversity and carbon storage, according to the study. "Recent climate anomalies as a result of climate change and warming of the Atlantic Ocean have created severe droughts in the tropics, causing major impacts on forests," a NASA researcher said.
08 Apr 2014:
'Living Fences' Dramatically
Cut Livestock and Lion Killings in Tanzania
A novel, low-tech idea is helping Tanzania's lion population rebound: So-called "living fences" — which enclose livestock and are constructed of actively growing trees and chain-link fencing — have cut lion
A Masai villager installs a living fence.
attacks and retaliatory killings by more than 85 percent in the areas they've been installed, the Guardian reports
. Traditionally, the Masai have built livestock enclosures out of thorny acacia trees, but those fences are relatively fragile. Chain-link fencing alone is more durable, but leopards and small lions can scale the fences, and hyenas can tunnel in below. By interweaving actively growing African myrrh trees with the chain link fencing, the Masai have created a barrier that lions can't climb over, and their root systems prevent predators from digging under the fence. Because livestock predation has been cut, communities that had been killing six or seven lions annually now kill, on average, less than one, leading to a rebound in lion populations.
07 Feb 2014:
Documented in Remote Forest in Congo
Researchers have documented a huge population of chimpanzees in the Democratic Republic of Congo — a community of perhaps tens of thousands of individuals with its own unique customs and behaviors, the Guardian reports
. The so-called "mega-culture," which spans 50,000 square kilometers of virtually untouched
Chimps are thriving in a remote Congo forest.
forest, is thought to be the largest population of chimps in Africa and one of the last remaining continuous populations of chimpanzees in the wild, the scientists report
in the journal Biological Conservation
. The researchers first reported on this community in 2007, but their new survey includes detailed videos of the thriving population and its unique behaviors, which include feasting on leopards, using tools to harvest giant African snails and swarming insects, and building ground nests far more frequently than other chimps. While the find is heartening in terms of chimpanzee conservation, the researchers and wildlife advocates fear the population could be decimated by habitat loss and poachers, who stand to make huge profits in the bushmeat trade.
06 Feb 2014:
Maps Show Tropical Corridors
Important to Wildlife As Climate Changes
A new set of maps
highlights the importance of habitat corridors in helping wildlife deal with the effects of climate change and deforestation. The series of maps shows more than 16,000 habitat corridors
— swaths of
land that connect forests or protected areas and allow animals to move between them — in tropical regions of Africa, Southeast Asia, and South America. High-resolution data on biodiversity, endemism, and vegetation density allowed the researchers, led by Patrick Jantz of the Woods Hole Research Center, to determine which corridors are most important for maintaining biodiversity under changing climate conditions. The maps also highlight which corridors are most important for sequestering carbon and averting carbon emissions associated with deforestation. Researchers hope the findings will help guide wildlife protection plans and serve as a framework prioritizing the conservation of habitat corridors.
17 Jan 2014:
More Than 1,000 Rhinos
Poached in 2013, South African Officials Say
More than 1,000 rhinos were illegally killed in South Africa last year, a record total and an increase of more than 50 percent from 2012, South African officials say
. South Africa is home to nearly all of the
world's 20,000 rhinos, which are targeted by poachers
because their horns are highly valued and believed to contain medicinal properties. Although those claims are scientifically unfounded, demand from increasingly wealthy consumers in China and Vietnam has driven the price of rhino horns to over $65,000 per kilogram — more valuable than gold, platinum, or cocaine. South Africa has tried to stem the crisis by training park rangers to use arms, drones, and helicopters
, but those anti-poaching efforts have shown limited success. Rhino poachings in 2012 also increased by 50 percent over 2011 totals, and 37 have been poached so far in 2014, officials report. Most of the killings are taking place in South Africa's Kruger National Park, where 606 rhinos were killed last year and 425 in 2012.
15 Jan 2014:
West African Lions Are
Critically Close to Extinction, Study Says
West African lions are close to extinction, and vulnerable populations could be wiped out in the next five to 10 years, according to new research
led by the wild cat conservation group Panthera. West African lions, which are genetically distinct from other African lions, once numbered in the tens of thousands. Now the
Male West African lion
population has been reduced to around 400 individuals spread across 17 countries, largely due to habitat loss, a shortage of prey, and poaching, according to the study published in PLOS ONE
. Of the remaining lions, only about 250 are mature enough to reproduce, but in many cases those individuals are spread too far apart to breed. West African lions are now present in only 1.1 percent of their original habitat and should be considered "critically endangered," according to the study. Running low on habitat and prey, the lions sometimes kill livestock. Villagers then kill the lions in revenge. "It's become very complicated for this carnivore at the top of the food chain to find enough space and food to survive," one scientist told Reuters.
02 Dec 2013:
Poachers Killed 22,000
Elephants in Africa Last Year, Group Says
Poachers slaughtered 22,000 elephants in 27 African countries last year, according to a new report
. Officials with The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and two conservation groups said that 15,000 elephant
Rhett A. Butler/Mongabay
A herd in Namibia
deaths from poaching were officially reported in Africa and that another 7,000 deaths went unreported. Although that number is a slight decrease from the 2011 estimate of 25,000 poaching deaths, CITES officials warn that poaching rates are far too high and could soon lead to local extinctions. Africa, which is currently home to roughly 500,000 elephants, could lose a fifth of its elephant population over the next 10 years, CITES says. "The estimated poaching rate of 7.4 percent in 2012 remains at an unsustainably high level, as it exceeds natural population growth rates (usually no more than 5 percent)," the report says.
14 Nov 2013:
U.S. Crushes Six Tons
Of Illegally Trafficked Elephant Ivory
The U.S. Fish and Wildlife Service
(FWS) destroyed six tons of elephant ivory
today that field agents seized over the past 25 years. The U.S. Ivory Crush event, which took place in Denver, Colorado, marked the first time
the FWS has destroyed large quantities of ivory. The move was an attempt to send a clear message that the U.S. will not tolerate illegal ivory trafficking and the toll it's taking on elephant populations in Africa and Asia, the FWS said. Seized ivory is usually kept as evidence for prosecuting traffickers, then later used for education and training, but the FWS had accumulated far more ivory than it needs. The ivory that was crushed included full tusks, carved tusks, jewelry, carvings, and other objects, and came from at least 2,000 poached elephants, the FWS estimates.
16 Oct 2013:
Climate-Driven Disasters To Keep
Impoverished Populations Poor, Study Says
Extreme weather events driven by climate change will exacerbate poverty in regions where people are already among the world's poorest, according to a study
by the U.K.'s Overseas Development Institute. Where disasters
Floods in Mozambique
such as drought are common, those events are the leading cause of poverty, the authors say, rather than poor health or societal factors. Across the globe, up to 325 million people will be living in countries that face natural hazard risks by 2030, the report says; in sub-Saharan Africa alone, 118 million people in poverty will face extreme events. To brace against the effects of disasters
, aid money should be spent on reducing those risks, rather than only on humanitarian relief after an extreme event, the authors argue. Currently, money tends to flow to a region after a disaster instead of before, when it could be used for prevention. "If the international community are serious about ending extreme poverty, they need to get serious about reducing disaster risk for the poorest people," the institute's Tom Mitchell told the BBC.