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News articles on greenhouse gas emissions
Mongabay.com news articles on greenhouse gas emissions in blog format. Updated regularly.
(09/11/2008) Old growth forests are important carbon sinks that help global warming, reports a study published in the journal Nature. The results run counter to claims by the forestry industry that old growth forests are carbon neutral or even net emitters of carbon dioxide.
Did prehistoric farmers drive early global warming?
(09/03/2008) In 2003 William Ruddiman put forth a controversial theory: 7,000 years ago the rise of agriculture spawned large-scale climatic changes. According to Ruddiman, the felling of forests for fields throughout Europe and Asia caused a rise in carbon dioxide, while the flooded fields for rice released methane gas. This combination of large amounts of carbon dioxide and methane entering the atmosphere caused the globe to warm, preventing the planet from entering another ice age.
Melting permafrost will be major driver of global warming
(09/01/2008) The thawing of permafrost in northern latitudes will become a major source of greenhouse gas emissions, according to a new study that more than doubles previous estimates of the amount of carbon stored in the frozen soils of Alaska and Siberia.
Past decade is warmest in at least 1300 years
(09/01/2008) A reconstruction of surface temperatures over the past two thousand years provides further evidence that the northern hemisphere is now warmer than at any time in at least 1300 years. The research, published in the online edition of the Proceedings of the National Academy of Sciences, in the Northern Hemisphere are higher than those of the Medieval warm period.
Saving oceans from acidification requires addressing climate policy
(08/27/2008) Ocean acidification driven by rising carbon dioxide emissions is a great threat to marine ecosystems and needs be addressed through climate policy and conservation measures, said top marine scientists meeting in Hawaii.
Global warming increases "extreme" rain storms
(08/07/2008) Global warming is increasing the incidence of heavy rainfall at a rate greater than predicted by current climate models have predicted, reports a new study published in the journal Science. The findings suggest that storm damage from precipitation could worsen as greenhouse gas concentrations continue to rise.
Reduced impact logging can save 160 m tons of carbon emissions per year
(08/06/2008) Improving inefficient logging practices could significantly reduce greenhouse gas emissions from forest degradation, argues a new study published in the open-access journal PLoS.
Biofuels can reduce emissions, but not when grown in place of rainforests
(07/22/2008) Biofuels meant to help alleviate greenhouse gas emissions may be in fact contributing to climate change when grown on converted tropical forest lands, warns a comprehensive study published earlier this month in the journal Environmental Research Letters. Analyzing the carbon debt for biofuel crops grown in ecosystems around the world, Holly Gibbs and colleagues report that "while expansion of biofuels into productive tropical ecosystems will always lead to net carbon emissions for decades to centuries... [expansion] into degraded or already cultivated land will provide almost immediate carbon savings." The results suggest that under the right conditions, biofuels could be part of the effort to reduce humanity's carbon footprint.
Destruction of wetlands worsens global warming
(07/20/2008) Destruction of wetland ecosystems will generate massive greenhouse gas emissions in coming years, warn experts convening at an international wetlands conference in Brazil.
Beyond high food prices, little to show for $11B/yr in biofuel support, says OECD report
(07/17/2008) Government support of biofuel production in rich countries is squandering vast amounts of amounts of money while exacerbating the global food crisis and failing to meaningfully curb greenhouse gas emissions and improve energy security, alleges a new report from the OECD, the club of industrialized nations.
Gore launches second campaign... for Earth
(07/17/2008) In a speech Thursday, Al Gore challenged the U.S. to generate 100 percent of its electricity from zero carbon emission sources within 10 years. Speaking at Washington's Constitution Hall, Gore said America's security, environmental and economic crises are all related, and that measures to rein in greenhouse gas emissions will make the U.S. stronger, safer, and cleaner. "The survival of the United States of America as we know it is at risk," Gore said. "I don't remember a time in our country when so many things seemed to be going so wrong simultaneously."
First carbon map of America released by NASA
(07/15/2008) For the first time, one can have a whole view of America's carbon output: region by region, city by city. The Vulcan Project has undertaken a holistic inventory—including electricity, heat, transportation, and industry—of local carbon emissions across the nation to create the first carbon map of America. Texas leads the fifty states, and the county of Harris, Texas (encompassing Houston) records the nation's largest emissions by county. Although Texas is second in population after California, its massive industry puts it over the top.
Pine beetles attack Canada, boosting GHG emissions
(07/10/2008) The mountain pine beetle, a small tree-devouring insect, has deforested an area of British Columbia the size of Louisiana — over 130,000 square kilometers. The 5 millimeter insect is a perfect tree-destroying machine. The beetles bore through the tree's bark to reach the phloem of the tree, which contains the tree's organic nutrients. The beetles then feed on these nutrients and lay their eggs. The trees defend themselves by secreting extra resin, but the beetles are often able to combat this by releasing a blue fungi. In about two weeks time, the tree turns a tell-tale red and essentially starves to death. The mountain pine beetles move on.
Britain urges 'cautious approach' on biofuels
(07/07/2008) Britain and the E.U. should exercise caution in pushing for wider use of biofuels, warns a new study commissioned by the U.K. government.
CO2 emissions could doom fishing industry
(07/03/2008) Aside from warming climate, rising carbon dioxide emissions are contributing to ocean acidification, threatening sea live, warn researchers writing in the journal Science. This trend makes it all the more important to reduce emissions, argue the authors.
California plan would cut emissions 30% by 2020
(06/27/2008) California announced a plan to reduce state greenhouse gas emissions by 30 percent by 2020.
The Importance of Immediate Action for Climate Mitigation
(06/27/2008) Speed matters for successfully managing the transition to a low-carbon future. We need to start now with immediate mitigation to learn what works best to limit climate emissions and enhance sinks, and to build confidence to strengthen efforts in the future. Immediate mitigation also is essential for getting ahead of accelerating climate feedbacks by quickly reducing greenhouse gas concentrations from the current 385 ppm (growing fast at 2 ppm/year) to a safe level — perhaps as low as 350 ppm.
China's CO2 emissions 14% higher than America's in 2007
(06/14/2008) China emitted 14 percent more carbon dioxide than the United States in 2007 according to a report released by the Netherlands Environmental Assessment Agency. China's emissions grew 8 percent from 2006.
Sea ice loss may triple warming over northern Alaska, Canada, and Russia
(06/11/2008) Fast-declining Arctic sea-ice could spur rapid warming in northern Alaska, Canada, and Russia triggering thawing of permafrost and a release greenhouse gases from the frozen soils, reports a new study published in Geophysical Research Letters.
Despite loss in Congress, global warming lobby gains momentum say environmentalists
(06/08/2008) Friday's defeat of the Lieberman-Warner Climate Security Act (S. 3036) by the Senate is being painted by environmentalists as a step towards future legislative success.
$45 trillion needed to meet energy demand, fight global warming by 2050
(06/08/2008) Investors will need to spend $45 trillion by 2050 to keep pace with growing energy demand while addressing concerns over global warming, warned the International Energy Agency in a report issued Friday.
Climate change will cause significant disruptions to U.S. agriculture says Fed study
(05/28/2008) Human-induced climate change will cause significant disruptions to water supplies, agriculture, and forestry in the United States in coming decades, says a federal report released Tuesday.
Carbon dioxide levels at highest level in 800,000 years
(05/28/2008) Greenhouse gases are at the highest levels in the past 800,000 years according to a study published in the journal Nature.
Ocean acidification worse than expected, threatens sea life
(05/22/2008) Increasing ocean acidification along the continental shelf of North America will likely have negative impacts on marine ecosystems, including the corrosion of calcium carbonate exoskeletons in many organisms, warn researchers writing in the journal Science.
U.S. carbon dioxide emissions reach record high in 2007
(05/21/2008) U.S. carbon dioxide emissions rose 1.6 percent in 2007 to a new record reported the Department of Energy's Energy Information Administration (EIA).
Earth's minerals kept CO2 levels in balance prior to humans
(04/28/2008) The natural feedback system that has kept Earth's atmospheric carbon dioxide levels finely-balanced for millions of years has been overwhelmed by fossil fuel combustion, reports a new study published in Nature Geoscience.
Carbon dioxide, methane levels rise sharply in 2007
(04/23/2008) Atmospheric concentrations of carbon dioxide and methane rose sharply in 2007, according to NOAA. The U.S. weather agency said that global levels of atmospheric carbon dioxide, the primary driver of global climate change, climbed by 0.6 percent, or 19 billion tons in 2007. Methane levels increased by 27 million tons after nearly a decade with little or no increase.
Gore to spend $300 million on global warming ads
(03/31/2008) This week Al Gore will launch a three-year, $300 million campaign to mobilize support for reining in greenhouse gas emissions, reports The Washington Post.
Asia Pulp & Paper destroying rare Sumatra forest
(03/27/2008) Companies linked to timber giant Asia Pulp & Paper (APP) are illegally building a road that runs through highly endangered peatland forest on the island of Sumatra, according to an investigative report published by Eyes on the Forest, a coalition of NGOs in Indonesia. The road would allow APP and its affiliates to log forests for timber and drain peat soil for the establishment of oil palm plantations. The action would release large amounts of carbon dioxide into the atmosphere from one of the world's largest contiguous tropical peat swamp forests.
China's emissions growth 2-4 times greater than expected
(03/11/2008) China's carbon dioxide emissions are growing far faster than anticipated according to according to a new analysis by economists at the University of California, Berkeley, and the University of California, San Diego. The study, published in the Journal of Environmental Economics and Management, estimates China will see an 11 percent annual growth rate in CO2 emissions between 2004 and 2010, two to four times the 2.5 to 5 percent growth rate estimated by the Intergovernmental Panel on Climate Change.
Emissions from deforestation offset by increased tree growth in the Amazon
(03/10/2008) An increase in carbon sequestration by trees in the Amazon has roughly offset total emissions from deforestation in the region since the 1980s. A new study, published in Philosophical Transactions of the Royal Society B, this trend may slow in the future, causing the world's largest rainforest to become a net source of carbon emissions and therefore contributing to climate change.
Scientists target safe-climate future
(03/10/2008) Friends of the Earth, Australia, working in conjunction with many of the world's foremost climate scientists recently published a report which should have quickly pervaded into mainstream media. It is a detailed, 100-plus page manifesto imploring immediate, radical action beyond not only the proposed climate change responses by the IPCC, mainstream environmental agencies, and world governments but outside the procedures and proceedings of our national and international authorities. Coverage of the ground-breaking report, however, remains mostly in the realm of climate sites and blogs, absent not only from major sources such as Reuters and Associated Press, but even from major conservation and environmental new sites.
Climate change leave Arctic tundra vulnerable to fire
(03/06/2008) Research from ancient sediment cores indicates that a warming climate could make the world's arctic tundra far more susceptible to fires than previously thought. The findings are important given the potential for tundra fires to release organic carbon -- which could add significantly to the amount of greenhouse gases already blamed for global warming.
Half the Amazon rainforest will be lost within 20 years
(02/27/2008) More than half the Amazon rainforest will be damaged or destroyed within 20 years if deforestation, forest fires, and climate trends continue apace, warns a study published in Philosophical Transactions of the Royal Society B. Reviewing recent trends in economic, ecological and climatic processes in Amazonia, Daniel Nepstad and colleagues forecast that 55 percent of Amazon forests will be "cleared, logged, damaged by drought, or burned" in the next 20 years. The damage will release 15-26 billion tons of carbon into the atmosphere, adding to a feedback cycle that will worsen both warming and forest degradation in the region. While the projections are bleak, the authors are hopeful that emerging trends could reduce the likelihood of a near-term die-back. These include the growing concern in commodity markets on the environmental performance of ranchers and farmers; greater investment in fire control mechanisms among owners of fire-sensitive investments; emergence of a carbon market for forest-based offsets; and the establishment of protected areas in regions where development is fast-expanding.
$100 billion worth of carbon released from deforestation in Riau, Sumatra
(02/27/2008) A WWF study found that deforestation of nearly 10.5 million acres of tropical forests and peat swamp in central Sumatra's Riau Province over the past 25 years has generated 3.7 gigatons of carbon dioxide. Based on today's $32 closing price for a ton of carbon dioxide for European Union Allowances, the emissions had a theoretical trading value of $118 billion, assuming they could have been traded at the full E.U. carbon price at the time (voluntary offsets would have been worth about $13 billion).
$1 trillion carbon market in the U.S. by 2020 says study
(02/14/2008) The U.S. carbon emission trading market will top $1 trillion by 2020 if policymakers continue on their current path towards a comprehensive "cap-and-trade" program, estimates an analysis released at climate roundtable discussions at the UN General Assembly in New York.
Stabilizing climate requires cutting emissions to zero
(02/14/2008) Even if greenhouse gas emissions are reduced to zero tomorrow, global temperatures would remain high for at least 500 years, according to a new study published in Geophysical Research Letters. The findings suggest that stablizing emissions at current levels will not be enough to curtail the effects of climate change.
Bloomberg: global warming "just as lethal" as terrorism
(02/12/2008) New York City mayor Michael Bloomberg told reporters Monday that global warming is as big a threat to humanity as terrorism, according to Reuters.
Biofuels are worsening global warming
(02/07/2008) Converting native ecosystems for production of biofuel feed stocks is worsening the greenhouse gas emissions they are intended to mitigate, reports a pair of studies published in the journal Science. The studies follow a series of reports that have linked ethanol and biodiesel production to increased carbon dioxide emissions, destruction of biodiverse forest and savanna habitats, and water and air pollution.
Carbon tax would make China greener and reduce warming risks
(02/07/2008) Driven by booming economic growth and rapid urbanization, China's carbon dioxide emissions are surging. At the same time, forecasts suggest climate change will have an immense impact on the country, with rising sea levels projected to swamp key industrial areas and diminished rainfall reducing agricultural output. Given this outlook, a new policy paper published in Science argues that China will need to embark on a cleaner path to growth, one that is less dependent on coal. The authors say that international assistance in the form of carbon funds could help persuade Chinese leadership to move towards more environmentally-friendly energy technologies.
Climate system approaching 9 critical tipping points
(02/04/2008) Earth is approaching and may pass nine important climate tipping points this century, according to research published this week in Proceedings of the National Academy of Science (PNAS).
Too early to say if iron seeding will slow global warming - scientists
(01/10/2008) Schemes to use feed the ocean with iron as a way to enhance carbon sequestration from the atmosphere are premature and could be damaging to sea life and marine ecosystems, warns a letter published in the journal Science by an international group of scientists.
Transportation accounts for 15% of global emissions
(01/07/2008) The transport sector accounts for 15 percent of carbon dioxide emissions and 31 percent of ozone released into the atmosphere by humankind, reports a study published in Proceedings of the National Academy of Sciences (PNAS).
Did U.S. negotiators go against the Bush administration in Bali?
(12/18/2007) Insiders in Washington are speculating that the US delegation to the U.N. climate talks in Bali went against the wishes of the Bush Administration as negotiations drew to a close last weekend, according to SPIEGEL ONLINE.
Will carbon credits-for-forests scheme be undermined by carbon negative bioenergy?
(12/18/2007) The Indonesian government has signed an agreement with energy giant Total E&P Indonesia on a carbon capture and storage scheme that could eventually lead to the development of carbon negative bioenergy production in the southeast Asian country, reports Biopact. The deal raises fears that feedstock for production could lead to large-scale deforestation of the country's remaining forests and undermine efforts to push forest conservation-for-carbon credits (or REDD) initiatives.
Palm oil is a net source of CO2 emissions when produced on peatlands
(12/17/2007) Researchers have confirmed that converting peat forests for oil palm plantations results in a large net release of carbon dioxide, indicating industry claims that palm oil helps fight climate change are unfounded, at least when plantations are established in peatlands.
Scientists: cut emissions now to avoid climate tipping point
(12/14/2007) Countries need to act soon to cut carbon dioxide emissions if the worst impacts of global warming are to be avoided, warned a panel of scientists speaking Thursday at the fall meeting of the American Geophysical Union in San Francisco.
Christmas shopping habits help drive global warming
(12/14/2007) Just as the conference in Bali on global warming wraps up with a middling agreement, consumers in the US and Europe are rushing to holiday stores, mostly unaware of how their Christmas consumerism affects global warming. The British independent think-tank, Nef (new economics foundation) has released a report highlighting the environmental cost of holiday shopping.
Bloomberg calls for a carbon tax
(12/13/2007) New York City mayor and potential U.S. presidential candidate Michael Bloomberg said that carbon cap-and-trade schemes are vulnerable to "special interests, corruption, inefficiencies," and should be replaced by straight carbon taxes, reports the Associated Press.
U.S. contributes $0 to World Bank's new $300m forest carbon fund
(12/11/2007) At U.N. climate talks in Bali, the World Bank officially unveiled its $300 million Forest Carbon Partnership Facility, a scheme that will offer tropical countries carbon offset credits to preserve forests.
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