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News articles on greenhouse gas emissions

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Mongabay.com news articles on greenhouse gas emissions in blog format. Updated regularly.

New record in global carbon emissions 'another wake-up call'

(05/31/2011) Global carbon emissions hit a new high last year proving once again that international political efforts, hampered by bickering, the blame-game, and tepidity, are failing to drive down the greenhouse gas emissions that are causing the planet to heat up. According to the International Energy Agency (IEA), following a slight fall in carbon dioxide emissions due to the economic downturn, emissions again rose to a new record level in 2010: 30.6 gigatons. This is a full 5 percent higher than the past record hit in 2008. The new record puts greater doubt on the international pledge of limiting the global average temperature rise to 2 degrees Celsius.


Has the green energy revolution finally arrived?

(05/17/2011) When historians look back at the fight to combat climate change—not to mention the struggle to overcome our global addiction to fossil fuels—will 2011 be considered a watershed moment? Maybe. In the last couple months, three countries—each in the top ten in terms of GDP—have suddenly made major renewable energy promises. Germany, Japan, and, just today, Britain are giving speeches and producing plans that, if successful, could be the global tipping point needed to move beyond fossil fuels to, one day, a world run entirely on green.


Opposition rises against Mekong dam as governments ponder decision

(04/13/2011) As the governments of Laos, Thailand, Cambodia, and Vietnam ready to meet on April 19th to decide whether or not to move forward on the Xayaburi Dam, critics of Mekong River hydroelectric project have warned that the dam will devastate freshwater biodiversity and impact the livelihoods of hundreds of thousands, if not more. Last month a coalition of 263 organizations from 51 countries released a letter in opposition of the dam’s construction.


Gas from 'fracking' not climate friendly

(04/13/2011) It appears every time a fossil fuels industry claims its energy is 'green' or 'climate-friendly', scientists discover this just isn't so. The most recent culprit is natural gas produced by an already controversial method known as hydraulic fracturing, or fracing, which extracts the gas from shale basins. A new study in Climatic Change has found that the process of fracing is worse than coal over a 20-year period and about equal over 100-years. Coal had long been considered the worst climate offender of all energy options.


Vanishing mangroves are carbon sequestration powerhouses

(04/05/2011) Mangroves may be the world's most carbon rich forests, according to a new study in Nature Geoscience. Measuring the carbon stored in 25 mangrove forests in the Indo-Pacific region, researchers found that mangroves forests stored up to four times as much carbon as other tropical forests, including rainforests. "Mangroves have long been known as extremely productive ecosystems that cycle carbon quickly, but until now there had been no estimate of how much carbon resides in these systems. That's essential information because when land-use change occurs, much of that standing carbon stock can be released to the atmosphere," explains co-author Daniel Donato, a postdoctoral research ecologist at the Pacific Southwest Research Station in Hilo, Hawaii.


Carbon labeling good for consumers and business

(03/31/2011) Want to know how many calories are in a serving from that box of cereal? Simply turn it over and you can read a wealth of information: calories, fat, fiber, nutrients. But what if you’d like to know how much carbon was emitted to produce your breakfast? Currently, you're out of luck. But an article in Nature Climate Change argues that labeling products—from food to household products—with their carbon footprint could reduce emissions over time as consumers and companies react to better environmental transparency. A 'carbon footprint' measures the total amount of greenhouse gases emitted to produce a product or service.


Bill Clinton takes on Brazil's megadams, James Cameron backs tribal groups

(03/28/2011) Former US President, Bill Clinton, spoke out against Brazil's megadams at the 2nd World Sustainability Forum, which was also attended by former California governor, Arnold Schwarzenegger, and film director, James Cameron, who has been an outspoken critic of the most famous of the controversial dams, the Belo Monte on the Xingu River.


Environmental sustainability—the new economic bottom line

(03/28/2011) That’s the message in Accounting for Sustainability: Practical Insights. The book represents the compilation of a five-year project—nicknamed “A4S”—sponsored by Prince Charles, Prince of Wales, that examined the feasibility of factoring industries’ impact on the environment into their economic spread sheets. Using case studies and interviews with leaders at major accounting firms, Accounting For Sustainability documents the bond between capitalism and environmental capital.


15 conservation issues to watch

(03/14/2011) Deforestation, oil spills, coral acidification: these are just a few examples of ongoing, and well-researched, environmental changes that are imperiling the world's biodiversity. But what issues are on the horizon? At the end of 2010, experts outlined in Trends in Ecology & Evolution 15 issues that may impact conservation efforts this year and beyond, but are not yet widely known. These are issues you may never hear about it again or could dominate tomorrow's environmental headlines. "Our aim was to identify technological advances, environmental changes, novel ecological interactions and changes in society that could have substantial impacts on the conservation of biological diversity […] whether beneficial or detrimental," the authors write in the paper. Experts originally came up with 71 possible issues and then whittled it down to the 15 most important—and least known.


Deforestation gives some Brazil beef a big carbon footprint

(03/08/2011) Extensive deforestation for low-yielding cattle production means some Brazilian beef carries a disproportionately high carbon footprint, reports a new study published in Environmental Science & Technology.


Birnam Wood in the 21st Century: northern forest invading Arctic tundra as world warms

(03/07/2011) In Shakespeare's play Macbeth the forest of Birnam Wood fulfills a seemingly impossible prophecy by moving to surround the murderous king (the marching trees are helped, of course, by an army of axe-wielding camouflaged Scots). The Arctic tundra may soon feel much like the doomed Macbeth with an army of trees (and invading species) closing in. In a recent study, researchers found that climate change is likely to push the northern forests of the boreal into the Arctic tundra—a trend that is already being confirmed in Alaska.


Indigenous leaders take fight over Amazon dams to Europe

(03/02/2011) Three indigenous Amazonian leaders spent this week touring Europe to raise awareness about the threat that a number of proposed monster dams pose to their people and the Amazon forest. Culminating in a press conference and protests in London, the international trip hopes to build pressure to stop three current hydroelectric projects, one in Peru, including six dams, and two in Brazil, the Madeira basin industrial complex and the massive Belo Monte dam. The indigenous leaders made the trip with the NGO Rainforest Foundation UK, including support from Amazon Watch, International Rivers, and Rainforest Concern.


Photo gallery: Borneo paradise saved from beachside coal plant

(02/22/2011) Last week the Malaysian government announced it had canceled a plan to build a coal-fired plant in the state of Sabah. The coal plant would have rested on a beach overlooking the Coral Triangle, one of the ocean's most biodiverse ecosystems, and 20 kilometers from Tabin Wildlife Reserve, a rainforest park home to endangered orangutans, Sumatran rhinos, Bornean elephants, and thousands of other species. The cancellation followed a long campaign by a group of environmental and human right organizations dubbed Green SURF (Sabah Unite to Re-power the Future), which argued that the coal plant would have imperiled ecosystems, ended artisanal fishing in the area, hurt tourism, and tarnished Sabah's reputation as a clean-green state.


Coal's true cost in the US: up to half a trillion

(02/20/2011) According to the global market coal is cheap, yet a new study in the Annals of the New York Academy of Sciences finds that the hidden costs of coal are expensive, very expensive. Estimating the hidden costs of coal, such as health and environmental impacts, the study found that burning coal costs the US up to $523 billion a year. Dubbed 'externalities' by economists, the paper argues that these costs are paid by the American public to the tune of $1,698 per person every year.


Environmentalists and locals win fight against coal plant in Borneo

(02/16/2011) Environmentalists, scientists, and locals have won the battle against a controversial coal plant in the Malaysian state of Sabah in northern Borneo. The State and Federal government announced today that they would "pursue other alternative sources of energy, namely gas, to meet Sabah's power supply needs." Proposed for an undeveloped beach on the north-eastern coast of Borneo, critics said the coal plant would have threatened the Coral Triangle, one of the world's most biodiverse marine ecosystems, and Tabin Wildlife Reserve, home to Critically Endangered Sumatran rhinos and Bornean orangutans. Local fishermen feared that discharges from the plant would have imperiled their livelihood.


The ocean crisis: hope in troubled waters, an interview with Carl Safina

(02/07/2011) Being compared—by more than one reviewer—to Henry Thoreau and Rachel Carson would make any nature writer's day. But add in effusive reviews that compare one to a jazz musician, Ernest Hemingway, and Charles Darwin, and you have a sense of the praise heaped on Carl Safina for his newest work, The View from Lazy Point: A Natural Year in an Unnatural World. Like Safina's other books, The View from Lazy Point focuses on the beauty, poetry, and crisis of the world's oceans and its hundreds-of-thousands of unique inhabitants. Taking the reader on a journey around the world—the Arctic, Antarctic, and the tropics—Safina always returns home to take in the view, and write about the wildlife of his home, i.e. Lazy Point, on Long Island. While Safina's newest book addresses the many ways in which the ocean is being degraded, depleted, and ultimately imperiled as a living ecosystem (such as overfishing and climate change) it also tweezes out stories of hope by focusing on how single animals survive, and in turn how nature survives in an increasingly human world. However, what makes Safina's work different than most nature writing is his ability to move seamlessly from contemporary practical problems to the age-old philosophical underpinnings that got us here. By doing so, he points a way forward.


From Cambodia to California: the world's top 10 most threatened forests

(02/02/2011) Growing populations, expanding agriculture, commodities such as palm oil and paper, logging, urban sprawl, mining, and other human impacts have pushed many of the world's great forests to the brink. Yet scientists, environmentalists, and even some policymakers increasingly warn that forests are worth more standing than felled. They argue that by safeguarding vulnerable biodiversity, sequestering carbon, controlling erosion, and providing fresh water, forests provide services to humanity, not to mention the unquantifiable importance of having wild places in an increasingly human-modified world. Still, the decline of the world's forests continues: the FAO estimating that around 10 million hectares of tropical forest are lost every year. Of course, some of these forests are more imperiled than others, and a new analysis by Conservation International (CI) has catalogued the world's 10 most threatened forests.


Cell phone cameras help monitor atmospheric black carbon

(02/01/2011) Tracking those giant footprints in the Himalayas just became a whole lot easier. Cell phone cameras bring the microscopic air pollutants forming that carbon footprint into plain view. In a study from the Scripps Institute of Oceanography, UC San Diego, V. Ramanathan and his colleagues use photographs of a quartz filter captured with a simple cell phone camera to monitor local atmospheric levels of black carbon.


Malaysian palm oil producers destroying Borneo peat forests faster than ever before

(02/01/2011) Peatlands and rainforests in Malaysia's Sarawak state on the island of Borneo are being rapidly destroyed for oil palm plantations, according to new studies by environmental group Wetlands International and remote sensing institute Sarvision. The analysis shows that more than one third (353,000 hectares or 872,000 acres) of Sarawak's peatswamp forests and ten percent of the state's rainforests were cleared between 2005 and 2010. About 65 percent of the area was converted for oil palm, which is replacing logging as timber stocks have been exhausted by unsustainable harvesting practices.


Is Obama's clean energy revolution possible?

(01/26/2011) Last night US President Barack Obama called for a massive green energy make-over of the world's largest economy. Describing the challenge as 'this generation's Sputnik moment' the US president set a goal of producing 80 percent of America's energy by clean sources by 2035. While this may sound improbable, two recent analyses back the president up, arguing that a global clean energy revolution is entirely possible within a few decades using contemporary technology and without breaking the bank. "Based on our findings, there are no technological or economic barriers to converting the entire world to clean, renewable energy sources," Mark Z. Jacobson, a professor of civil and environmental engineering at Stanford said in a press release. "It is a question of whether we have the societal and political will."


Amount of carbon absorbed by ecosystems each year is grossly overstated, says new study

(01/17/2011) According to a new paper published in Science, current carbon accounting methods significantly overstate the amount of carbon that can be absorbed by forests, plains, and other terrestrial ecosystems. That is because most current carbon accounting methods do not consider the methane and carbon dioxide released naturally by rivers, streams, and lakes. This new paper suggests that rivers, streams, and lakes emit the equivalent of 2.05 billion metric tons of carbon every year. (By comparison, all the terrestrial ecosystems on the world’s continents are thought to absorb around 2.6 billion metric tons of carbon each year). This is, as the lead author of the paper said, is a “major accounting error”.


Meat producers should replace cattle with insects, scientists say

(01/10/2011) Scientists in the Netherlands have discovered that insects produce significantly less greenhouse gas per kilogram of meat than cattle or pigs. Their study, published in the online journal PLoS One, suggests that a move towards insect farming could result in a more sustainable - and affordable - form of meat production.


Ringed and bearded seals to be listed as Threatened

(12/29/2010) The National Oceanic and Atmospheric Administration has proposed listing bearded and ringed seals as threatened under the Endangered Species Act. NOAA highlights the disappearance of arctic sea ice and reduced snow cover as the major threats to the species.


Indonesian climate official: palm oil lobbyist is misleading the public

(12/29/2010) Alan Oxley, a lobbyist for industrial forestry companies in the palm oil and pulp and paper sectors, is deliberately misleading the public on deforestation and associated greenhouse gas emissions, said a top Indonesian climate official.


EPA steps up greenhouse gas restrictions for nation's biggest polluters

(12/28/2010) The US Environmental Protection Agency recently issued its plan for establishing greenhouse gas emission restrictions for the nation's biggest polluters under the Clean Air Act. The restrictions are scheduled to take effect in 2012.


Will Indonesia's big REDD rainforest deal work?

(12/28/2010) Flying in a plane over the Indonesian half of the island of New Guinea, rainforest stretches like a sea of green, broken only by rugged mountain ranges and winding rivers. The broccoli-like canopy shows little sign of human influence. But as you near Jayapura, the provincial capital of Papua, the tree cover becomes patchier—a sign of logging—and red scars from mining appear before giving way to the monotonous dark green of oil palm plantations and finally grasslands and urban areas. The scene is not unique to Indonesian New Guinea; it has been repeated across the world's largest archipelago for decades, partly a consequence of agricultural expansion by small farmers, but increasingly a product of extractive industries, especially the logging, plantation, and mining sectors. Papua, in fact, is Indonesia's last frontier and therefore represents two diverging options for the country's development path: continued deforestation and degradation of forests under a business-as-usual approach or a shift toward a fundamentally different and unproven model based on greater transparency and careful stewardship of its forest resources.


Malaysia undermines commitment to protect Coral Triangle, backtracks on climate pledge

(12/22/2010) The Malaysian government will proceed with a plan to install a second-hand coal plant from China on the edge of the Coral Triangle in Borneo despite widespread condemnation from environmental groups and local people, reports Green SURF, a coalition that opposes the project.


California approves cap-and-trade under global warming law

(12/17/2010) The California Air Resources Board voted 9-1 to adopt cap and trade regulations for AB32, California's 2006 climate law. The move, which establishes the first compliance carbon trading system in the United States, opens the door for carbon offsets generated via forest conservation projects.


New data shows REDD+ is succeeding

(12/15/2010) Amid the whirlwind of climate change news before and after the Cancún climate conference, including a landmark agreement on REDD+ (reducing emissions from deforestation, and related pro-forest actions), an important story seems to have passed by with little notice. Over the past two months, several new analyses have given clear evidence that deforestation has gone down over the past several years. In fact, the drop is quite impressive, and shows that of all the approaches to avoiding the worst consequences of global warming, reducing tropical deforestation is the one that has contributed by far the most to date.


Emissions from deforestation slow

(12/15/2010) A dip in forest clearing in Brazil combined with rising levels of industrial emissions have reduced the share of carbon dioxide emissions from deforestation to around 9 percent, according to research published last month in Nature Geoscience.


Carbon sequestration: Underground storage of carbon dioxide may trigger earthquakes

(12/14/2010) Underground storage of carbon dioxide may trigger earthquakes which could allow the gas to seep back into the atmosphere, rendering the emissions mitigation approach ineffective, warns Stanford geophysicist Mark Zoback.


Oil, indigenous people, and Ecuador's big idea

(11/23/2010) Ecuador's big idea—potentially Earth-rattling—goes something like this: the international community pays the small South American nation not to drill for nearly a billion barrels of oil in a massive block of Yasuni National Park. While Ecuador receives hundred of millions in an UN-backed fund, what does the international community receive? Arguably the world's most biodiverse rainforest is saved from oil extraction, two indigenous tribes' requests to be left uncontacted are respected, and some 400 million metric tons of CO2 is not emitted from burning the oil. In other words, the international community is being asked to put money where its mouth is on climate change, indigenous rights, and biodiversity loss. David Romo Vallejo, professor at the University of San Francisco Quito and co-director of Tiputini research station in Yasuni, recently told mongabay.com in an interview that this is "the best proposal so far made to ensure the protection of this incredible site."


Formal petition filed against Belo Monte dam

(11/11/2010) The struggle against Brazil's Belo Monte dam on the Xingu River continues as today indigenous groups sent a formal petition to the Inter-American Commission on Human Rights (IACHR) to suspend the dam's construction, stating the dam violates human rights. The dam, which has been contentious in Brazil for decades, would flood 500 square miles of rainforest, lead to the removal of at least 12,000 people in the region, and upturn the lives of 45,000 indigenous people who depend on the Xingu River for survival.


It's not just size that matters: how population affects climate change

(11/11/2010) As the world's population increases, a surge in the number of older adults and the movement of people from the countryside to crowded cities will significantly affect levels of carbon dioxide emissions by 2050, according to a sweeping study published in the 11 October issue of the Proceedings of the National Academy of Sciences. A significant but attainable slowing of the planet's growing population could achieve up to 29 percent of the total decrease in emissions needed to stave off the harmful consequences of climate change by 2050, according to the study.


Beyond gloom: solutions to the global coral reef decline

(11/10/2010) The world's coral reefs are in trouble. Due to a variety of factors—including ocean acidification, warming temperatures from climate change, overfishing, and pollution—coral cover has decline by approximately 125,000 square kilometers in the past 50 or so years. This has caused some marine biologists, like Charlie Veron, Former Chief Scientist of the Australian Institute of Marine Science, to predict that coral reefs will be largely extinguished within a century. This year alone, large-scale coral bleaching events, whereby coral lose their symbiotic protozoa and become prone to disease and mortality, were seen off the coasts of Indonesia, the Philippines, and some Caribbean islands. However a new paper in Trends in Ecology and Evolution attempts to dispel the gloom over coral reefs by pointing to strategies, and even some successes, to save them.


Carbon emissions hurting coral recruitment

(11/08/2010) While research has shown that ocean acidification from rising CO2 levels in the ocean imperils the growth and survival mature coral reefs, a new study has found that it may also negatively impact burgeoning corals, by significantly lowering the success of coral recruitment. A study in the Proceedings of the National Academy of Sciences (PNAS) has found that coral recruitment could fall by 73% over the next century due to increasing acidification.


Asia Pulp & Paper's emissions from paper production 500 times higher than claimed

(11/04/2010) Asia Pulp & Paper is misrepresenting the greenhouse gas emissions generated through its paper production by several orders of magnitude claims a new analysis of its carbon footprint by the Rainforest Action Network (RAN) and the Japan Tropical Forest Action Network (JATAN).


US elects barrage of climate change deniers, threatening support for green energy

(11/03/2010) The US midterm election, which won Republicans the House but safeguarded the Senate for Democrats, has brought in a number of self-proclaimed climate change deniers, ending any likelihood that an energy bill will be passed over the next two years and essentially stumbling the White House's strategy on climate change. Newly elected Republican Senators Rand Paul of Kentucky and Marc Rubio of Florida, both members of the nascent Tea Party, have stated they do not believe in climate change despite that scientists overwhelming agree the Earth is warming due to human impacts.


Tropical agriculture "double-whammy": high emissions, low yields

(11/02/2010) Food produced in the tropics comes with high carbon emissions and low crop yields, according to a new study in the Proceedings of the National Academy of Sciences (PNAS). In the most comprehensive and detailed study to date looking at carbon emissions versus crop yields, researchers found that food produced in the tropics releases almost double the amount of carbon while producing half the yield as food produced in temperate regions. In other words, temperate food production is three times more efficient in terms of yield and carbon emissions.


Mixed messages on geoengineering: international community approves moratorium, US pushes research

(10/31/2010) Efforts to explore geoengineering, whereby governments would employ large-scale projects to alter the world's climate in a bid to combat climate change, received mixed messages this week. In Nagoya, Japan—where all but three of the world's nations (the US, Andorra, and the Holy See) met at the Convention on Biological Diversity (CBD) to hammer out an agreement on stemming biodiversity loss—member nations agreed on Friday to a moratorium on geoengineering schemes. On the same day a US congressional report on geoengineering, which it termed climate engineering, recommended "research now to better understand which technologies or methods, if any, represent viable stopgap strategies for managing our changing climate."


California puts fate of tropical rainforests up for vote

(10/27/2010) When you vote on Nov. 2, remember that Peru is planning to save all of its rain forest. To reach the zero deforestation goal, a new environmental policy put in place last year calls for innovative payments to indigenous people and peasants, who control around a quarter of the forest, and a mosaic of protected areas and sustainable timber production for much of the rest. Environmental costs are being rolled into environmental impact assessments, and the country is formulating new ways to mitigate and compensate for the effects of big development projects, such as roads and dams. Meanwhile, California is poised to make a headlong leap in the other direction. Proposition 23 on the Nov. 2 ballot would kill the state's 2006 climate law by permitting it to kick in only if California becomes a full-employment economic utopia of a sort not yet seen on this continent. While much of the Proposition 23 debate revolves around the important effects here, this policy U-turn could thwart budding environmental efforts around the world, such as those in Peru.


Norway calls for other nations to step up in fight against deforestation in Indonesia

(10/27/2010) On Monday, Norway's Environment Minister called for the US, Japan, and the EU to open their pocket books to support Indonesia's drive to stop deforestation, according to Reuters. Norway has pledged $1 billion to Indonesia in an effort to stop rampant deforestation mostly due to industrial logging and the establishment of commercial plantations for palm oil and paper production.


Space tourism will worsen climate change

(10/24/2010) Have $200,000 to spend on a seat into space? You may want to re-think the expenditure given a new study in Geophysical Research Letters that shows space tourism will likely aggravate global climate change. Using sophisticated modeling, the researchers found that the biggest impact of a rise in space tourism on global temperatures won't be due to carbon emissions, but black carbon, often in the form of soot.


Majority of Americans confused on climate change basics

(10/17/2010) Most Americans don't understand the basics of climate change, according to a new poll by researchers with Yale. The poll found that over half of Americans deserve an 'F' on basic understanding of climate science and climate change, while only 1% would receive an 'A'.


Humanity consuming the Earth: by 2030 we'll need two planets

(10/13/2010) Too many people consuming too much is depleting the world's natural resources faster than they are replenished, imperiling not only the world's species but risking the well-being of human societies, according to a new massive study by the World Wildlife Fund (WWF), entitled the Living Planet Report. The report finds that humanity is currently consuming the equivalent of 1.5 planet Earths every year for its activities. This overconsumption has caused biodiversity—in this case, representative populations of vertebrate animals—to fall by 30 percent worldwide since 1970. The situation is more dire in tropical regions where terrestrial species' populations have fallen by 60 percent and freshwater species by 70 percent.


Obama science adviser wields evidence to undercut climate change denier

(10/04/2010) US President Barack Obama's science adviser, John Holdren, took on climate change deniers in a comprehensive, data-heavy speech last month at the Kavli Science Forum in Oslo, Norway. Proclaiming that "the earth is getting hotter", Holden went on to enumerate on the causes of climate change (human impacts) and its overall effect (not good), discussing at length the science that underpins the theory of climate change. For environmentalists and international officials frustrated with the US's slow pace on combating climate change—which is decades behind Europe's and many other nations'—Holdren touted that the Obama Administration had made progress on the issue and stated that the administration plans to pursue legislation again after a new congress is elected. However, given current predictions that Republicans will pick up seats in November, comprehensive climate and energy legislation seems unlikely since historically the majority of the GOP has been against tackling climate change.


Brazil's cerrado wins protection, but will it be enough to save the wildlife-rich grassland?

(09/15/2010) Brazil announced a plan to protect the cerrado, the vast woody savanna that covers 20 percent of the country but has become the nation's biggest single source of carbon emissions due to conversion for agriculture and cattle pasture, reports Brazil's Ministry of the Environment.


Indonesia's forest conservation plan may not sufficiently reduce emissions

(08/25/2010) One third of Indonesia's greenhouse gas emissions from deforestation originate from areas not officially defined as 'forest' suggesting that efforts to reduce emissions from deforestation and degradation (REDD+) may fail unless they account for carbon across the country's entire landscape, warns a new report published by the World Agroforestry Centre (CGIAR). The policy brief finds that up to 600 million tons of Indonesia's carbon emissions 'occur outside institutionally defined forests' and are therefore not accounted for under the current national REDD+ policy, which, if implemented, would enable Indonesia to win compensation from industrialized countries for protecting its carbon-dense forests and peatlands as a climate change mechanism.


146 dams threaten Amazon basin

(08/19/2010) Although developers and government often tout dams as environmentally-friendly energy sources, this is not always the case. Dams impact river flows, changing ecosystems indefinitely; they may flood large areas forcing people and wildlife to move; and in the tropics they can also become massive source of greenhouse gases due to emissions of methane. Despite these concerns, the Amazon basin—the world's largest tropical rainforest—is being seen as prime development for hydropower projects. Currently five nations—Brazil, Bolivia, Colombia, Ecuador, and Peru—are planning over 146 big dams in the Amazon Basin. Some of these dams would flood pristine rainforests, others threaten indigenous people, and all would change the Amazonian ecosystem. Now a new website, Dams in Amazonia, outlines the sites and impacts of these dams with an interactive map.


Could biochar save the world?

(08/16/2010) Biochar—the agricultural application of charcoal produced from burning biomass—may be one of this century's most important social and environmental revolutions. This seemingly humble practice—a technology that goes back thousands of years—has the potential to help mitigate a number of entrenched global problems: desperate hunger, lack of soil fertility in the tropics, rainforest destruction due to slash-and-burn agriculture, and even climate change. "Biochar is a recalcitrant form of carbon that will stay almost entirely unaltered in soils for very long periods of time. So you can sequester carbon in a simple, durable and safe way by putting the char in the soil. Other types of carbon in soils rapidly turn into carbon dioxide. Char doesn't," managing director of the Biochar Fund, Laurens Rademakers, told mongabay.com in a recent interview.



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