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News articles on carbon dioxide

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Mongabay.com news articles on carbon dioxide in blog format. Updated regularly.

Deforestation emissions should be shared between producer and consumer, argues study

(11/19/2009) Under the Kyoto Protocol the nation that produces carbon emission takes responsibility for them, but what about when the country is producing carbon-intensive goods for consumer demand beyond its borders? For example while China is now the world's highest carbon emitter, 50 percent of its growth over the last year was due to producing goods for wealthy countries like the EU and the United States which have, in a sense, outsourced their manufacturing emissions to China. A new study in Environmental Research Letters presents a possible model for making certain that both producer and consumer share responsibility for emissions in an area so far neglected by studies of this kind: deforestation and land-use change.


Oceans' ability to sequester carbon diminishing

(11/18/2009) A new study—the first of its kind—has completed an annual accounting of the oceans' intake of carbon over the past 250 years, and the news is troubling. According to the study, published in Nature, the oceans' ability to sequester carbon is struggling to keep-up with mankind's ever-growing emissions. Since 2000 researchers estimate that while every year the oceans continue to sequester more anthropogenic carbon emission, the overall proportion of carbon taken in by the oceans is declining.


Record year for CO2 emissions, even with economic slowdown

(11/17/2009) 8.7 billion tons of carbon dioxide was emitted into the earth's atmosphere in 2008, a growth of 2 percent despite the economic crisis. This averages out to each person contributing a record high of 1.3 tons of carbon, according to a report in the journal Nature Science. While the global recession slowed the growth of fossil fuel emissions for the first time this decade, it did not lower emissions altogether.


Coastal habitats may sequester 50 times more carbon than tropical forests by area

(11/16/2009) Highly endangered coastal habitats are incredibly effective in sequestering carbon and locking it away in soil, according to a new paper in a report by the IUCN. The paper attests that coastal habitats—such as mangroves, sea grasses, and salt marhses—sequester as much as 50 times the amount of carbon in their soil per hectare as tropical forest. "The key difference between these coastal habitats and forests is that mangroves, seagrasses and the plants in salt marshes are extremely efficient at burying carbon in the sediment below them where it can stay for centuries or even millennia."


Asia-Pacific leaders drop emissions cuts from Copenhagen agenda

(11/16/2009) Leaders of the 21-member Asia Pacific Economic Cooperation (APEC) dropped the reference to greenhouse gas emissions cuts from their declaration released Sunday, reports Reuters.


Brazil pledges to restrain emissions growth

(11/15/2009) In a move that some observers say could provide a path forward on a future climate agreement that includes emissions cuts in developing countries, Brazilian President Luiz Inacio Lula da Silva said his country will aim to reduce emissions 14 to 19 percent below 2005 levels by 2020.


EU is 2nd largest source of peat emissions after Indonesia, finds global peat survey

(11/04/2009) The EU is the world's second largest source of carbon dioxide emissions from peatlands drainage, after Indonesia, reports the first country-by-country assessment of peat stocks. The study, conducted by Wetlands International and Greifswald University, found that drainage of wetlands for agriculture, forestry and peat extraction causes 1.3 billion tons of carbon dioxide emissions per year. Emissions from fires and peat mining (for horticulture and fuel) amount to another 700,000 million tons per year.


Emissions from deforestation overestimated; 12% rather than 17%

(11/04/2009) Greenhouse gas emissions from deforestation are lower than previously believed, according to a new study published in Nature Geoscience. The findings mean that developing countries may see less money under Reducing Emissions from Deforestation and Degradation, a proposed climate change mitigation mechanism.


Carbon accounting must not neglect emissions from bioenergy production and use

(10/29/2009) Carbon accounting used in the Kyoto Protocol and other climate legislation currently neglects CO2 emissions from the production of biofuels, a loophole that could drive large-scale destruction of tropical forests and exacerbate global warming, warned researchers writing last week in the journal Science.


Brazil to support REDD in Copenhagen

(10/28/2009) Brazil will conditionally support a proposed climate change mitigation scheme that will compensate tropical countries for preserving their forests, reports Reuters.


Freshwater species worse off than land or marine

(10/15/2009) Scientists have announced that freshwater species are likely the most threatened on earth. Extinction rates for freshwater inhabitants are currently four to six times the rates for terrestrial and marine species. Yet, these figures have not lead to action on the ground.


500 global business leaders call for 50-85% cut in emissions by 2050

(09/22/2009) In a statement issued today, more than 500 business leaders have called for "an ambitious, robust and equitable global deal" on climate change.


Indonesia: emissions to rise 50% by 2030, 3rd largest GHG emitter

(09/22/2009) A report released by the Indonesian government shows the country is the world's third largest greenhouse gas emitter, largely as a result of the destruction of rainforests and carbon-dense peatlands. Indonesia accounts for 8 percent of global carbon dioxide emissions.


US subsidies of oil and coal more than double the subsidies of renewable energy

(09/21/2009) During the fiscal years of 2002-2008 the United States handed out subsidies to fossil fuel industries to a tune of 72 billion dollars, while renewable energy subsidies, during the same period, reached 29 billion dollars.


Climate Crisis Sparks Radical Response

(09/17/2009) The global political process to counter runaway climate change has become, for practical purposes, irrelevant. None of the currently proposed emissions reductions being seriously considered in policy making are appropriate to meet the severity of the situation. This overwhelming failure on the part of world governments is pushing the rapid unification of environmentalists, activists, scientists, and others to push for direct, immediate change.


France announces carbon tax

(09/10/2009) The President of France, Nicolas Sarkozy, has announced that he will implement a carbon tax to help "save the human race" from global warming.


Maldives president tells world: 'please, don’t be stupid' on climate change

(09/01/2009) "Please, don't be stupid," Mohamed Nasheed told the world regarding the need to act decisively against climate change. To underlie his message, Nasheed announced that his country will become carbon neutral in ten years.


Destructive farming practices of early civilization may have altered climate long before industrial era

(08/31/2009) William Ruddiman has become well known for his theory that human-induced climate change started long before the Industrial Age. In 2003 he first brought forth the theory that the Neolithic Revolution-when some humans turned from hunter-gathering to large-scale farming-caused a shift in the global climate 7,000 years ago.


India surpasses Japan in CO2 emissions

(08/12/2009) India accounts for about five percent of global carbon dioxide emissions, roughly a quarter of the emissions of China and the United States, according to an Indian government study reported by Reuters.


Emissions from Amazon deforestation to rise as loggers move deeper into the rainforest

(07/31/2009) Emissions from Amazon deforestation are growing as developers move deeper into old-growth forest areas where carbon density is higher, report scientists writing in Geophysical Research Letters.


Temperate forests store more carbon than tropical forests, finds study

(07/17/2009) Temperate forests trump rainforests when it comes to storing carbon, reports a new assessment of global forest carbon stocks published July 14th in Proceedings of the National Academy of Sciences (PNAS). The findings have important implications for efforts to mitigate climate change by protecting forests. Sampling and reviewing published data from nearly 100 forest sites around the world, Heather Keith, Brendan G. Mackey, and David B. Lindenmayer of Australian National University found that Australia's temperate Eucalyptus forests are champions of carbon storage, sequestering up to 2,844 metric tons of carbon per hectare, a figure that far exceeds previous estimates. These forests, located in the Central Highlands of Victoria in southeastern Australia, are dominated by giant Mountain Ash (Eucalyptus regnans) trees, which can reach a height of 320 feet and live for more than 350 years. They are also favored by the timber industry. Mountain Ash forests have been widely logged across Australia, with only limited old-growth stands remaining.


Russia pledges to raise carbon emissions to combat global warming

(06/25/2009) In a bizarre announcement that threatens to further weaken the international community's ability to come together on climate change, Russia has said it will reduce its emissions 10-15 percent from 1990 levels by 2020. The problem is that in 1990 Russia's carbon emissions were much higher than they are today, so this 'lowering' of carbon emissions actually means that Russia will raise its emissions by 2 to 2.5 percent annually until 2020.


Wind could power the entire world

(06/22/2009) Wind power may be the key to a clean energy revolution: a new study in the Proceedings of the National Academy of Science finds that wind power could provide for the entire world’s current and future energy needs.


Fate of world's rainforests likely to be determined in next 2 years

(06/19/2009) The fate of millions of hectares of tropical forests will probably be sealed this year and next year, reports a new set of policy papers detailing an emerging climate change mitigation mechanism known as Reducing Emissions from Deforestation and Degradation (REDD). REDD has been proposed by the U.N. and other entities as a form of carbon finance under which industrialized nations would pay tropical countries for conserving their forest cover.


CO2 currently at highest level in 2.1 million years

(06/18/2009) Atmospheric carbon dioxide levels are higher than any point in the last 2.1 million years, report researchers writing in the journal Science.


REDD can compete financially with palm oil in Indonesia peatlands while protecting endangered species

(06/04/2009) A new paper by Oscar Venter, a PhD student at the University of Queensland, and colleagues finds that forest conservation via REDD — a proposed mechanism for compensating developing countries for Reducing Emissions from Deforestation and Degradation — could be economically competitive with oil palm production, a dominant driver of deforestation in Indonesia. The study, based on overlaying maps of proposed oil palm development with maps showing carbon-density and wildlife distribution in Kalimantan (Indonesian Borneo), estimates that REDD is financially competitive, and potentially able to fund forest conservation, with oil palm at carbon prices of $10-$33 per ton of carbon dioxide equivalent (tCO2e). In areas with low agricultural suitability and high forest carbon, notably peatlands, Venter and colleagues find that a carbon price of $2 per tCO2e would be sufficient to beat out returns from oil palm.


Peatlands conversion for oil palm a 'monumental mistake' for Indonesia's long-term prosperity, sustainability

(06/04/2009) Indonesia's decision earlier this year to allow conversion of up to 2 million hectares of peatlands for oil palm plantations is "a monumental mistake" for the country’s long-term economic prosperity and sustainability, argues an editorial published in the June issue of Frontiers in Ecology and the Environment.


U.S. CO2 emissions fall 2.8% in 2008

(05/21/2009) Carbon dioxide emissions from fossil fuel use in the United States fell 2.8 percent in 2008, the largest annual drop in more than 20 years, reports the Energy Information Administration. A slowing economy and high gasoline prices contributed to the decline. U.S. emissions from fossil fuel burning in 2008 were 15.9 percent above the 1990 level (the baseline for the 1997 Kyoto Protocol) and 2.8 percent below the 2005 level (the baseline proposed under the American Clean Energy and Security Act of 2009 [Waxman-Markey bill]).


Voluntary carbon markets double in 2008

(05/20/2009) Voluntary carbon markets greatly expanded in both transaction volume and value in 2008, providing critical funds for projects aiming to reduce greenhouse gas emissions, according to a new report from Ecosystem Marketplace and New Carbon Finance. Fortifying the Foundation: State of the Voluntary Carbon Markets 2009 — a survey of over 190 voluntary carbon credit retailers, brokers, accounting registries, and exchanges — found that voluntary carbon markets transacted 123 million metric tons of carbon credits valued at $705 million in 2008, up from 65 million tons of credits valued at $331 million in 2007.


Global warming estimates double in severity according to new MIT modeling

(05/20/2009) Employing the MIT Integrated Global System Model, scientists have found that global warming could be more than twice as severe as previous estimates six years ago. The MIT Integrated Global Systems Model, which uses computer simulations to analyze the relationship between climatic changes and the global economy, found during 400 runs of the model that there is a 90 percent probability that temperatures will have risen 3.5 to 7.4 degrees Celsius by the end of the century.


Obama to increase fuel economy standard to 35 mpg by 2016

(05/18/2009) The Obama administration will direct the Environmental Protection Agency (EPA) and the Department of Transportation to raise fuel economy standards of automobiles to 35 miles per gallon by 2016, four years earlier than required under current federal law, reports the Wall Street Journal. The move is part of the administration's effort to reduce greenhouse gas emissions. Transportation accounts for nearly one third of U.S. carbon dioxide emissions.


Tropical storms affect carbon sinks by knocking down forests

(04/27/2009) Studying nearly a hundred and fifty years of tropical storm landfalls in the United States, researchers have discovered that the storm systems have a sizeable impact on forest carbon sinks due to the large-scale destruction of trees.


Fire contributes 20% of global warming emissions

(04/23/2009) Fire accounts for roughly half of greenhouse gas emissions from deforestation and about twenty percent of total emissions from human activities, report researchers writing in the journal Science. The estimates — based on analysis of fire's impact on emissions of carbon dioxide, nitrous oxide, and methane; albedo or the reflectivity of Earth's surface; and release of aerosols and other particulates — suggest fire plays a major large role in climate than conventionally believed.


U.S. climate change legislation may cut energy costs - report

(04/21/2009) The U.S. can dramatically cut greenhouse gas emissions while reducing energy spending at the same time, reports a new study by the Union of Concerned Scientists (UCS).


EPA finds CO2 a danger to public health

(04/17/2009) The U.S. Environmental Protection Agency on Friday ruled that carbon dioxide and other greenhouse gases "may endanger public health or welfare", a finding that opens to door to future regulation of such emissions under the the Clean Air Act.


Cutting greenhouse gases now would save world from worst global warming scenarios

(04/14/2009) If nations worked together to produce large cuts in greenhouse gases, the world would be saved from global warming's worst-case-scenarios, according to a new study from the National Center for Atmospheric Research (NCAR). The study found that, although temperatures are set to rise this century, cutting greenhouse gases by 70 percent the globe could avoid the most dangerous aspects of climate change, including a drastic rise in sea level, melting of the Arctic sea ice, and large-scale changes in precipitation. In addition such cuts would eventually allow the climate to stabilize by the end of the century rather than a continuous rise in temperatures.


Rainforest conservation gains in U.S. and U.N. climate proposals

(04/14/2009) A proposed mechanism for reducing emissions from deforestation and degradation (REDD) figures prominently in the draft climate bill released last month by Congressmen Henry Waxman and Ed Markey as well as a U.N. document posted last week following a climate meeting in Bonn, Germany. Deforestation is the source of roughly 20 percent of greenhouse gas emissions from human activities.


Ocean fertilization will not help reduce CO2 levels, suggests experiment

(03/24/2009) A controversial 'ocean fertilization' experiment suggests seeding the seas with iron to boost carbon-absorbing phytoplantkon will not sequester much carbon dioxide from the atmosphere. Some — including researchers and private companies — had hoped iron fertilization might be an easy fix for climate change.


EPA takes first step towards regulating global warming emissions

(03/23/2009) The Obama Administration is reviewing a finding by the Environmental Protection Agency that carbon dioxide emissions — and associated impact on climate — are a danger to public health, reports the Associated Press.


Shells thinning due to ocean acidification

(03/13/2009) By soaking up excess CO2 from the atmosphere oceans are undergoing a rise in acidity which is having ramifications across their ecosystems, most frequently highlighted in the plight of coral reefs around the world. However, a new study in Nature Geoscience shows that the acidification is affecting another type of marine life. Foraminifera, a tiny amoeba-like entity numbering in the billions, have experienced a 30 to 35 percent drop in their shell-weight due to the high acidity of the oceans.


Drought threatens the Amazon rainforest as a carbon sink

(03/05/2009) Drought in the Amazon is imperiling the rainforest ecosystem and global climate, reports new research published in Science. Analyzing the impact of the severe Amazon drought of 2005, a team of 68 researchers across 13 countries found evidence that rainfall-starved tropical forests lose massive amounts of carbon due to reduced plant growth and dying trees. The 2005 drought — triggered by warming in the tropical North Atlantic rather than el Niño — resulted in a net flux of 5 billion tons of carbon dioxide (CO2) into the atmosphere — more than the combined annual emissions of Japan and Europe — relative to normal years when the Amazon is a net sink for 2 billion tons of CO2.


China's emissions rise 45%, but Western demand accounts for 30% of increase

(02/26/2009) Thirteen-and-a-half percent of China's 45 percent rise in greenhouse gas emissions between 2002 and 2005 can be attributed to export production for Western countries, reports a new study published in Geophysical Research Letters. In other words, outsourcing of manufacturing by American and European firms accounted for larger share of carbon dioxide emission growth than rising domestic consumption in China (which made of 7 percent of the figure). The results, which indicate that Western companies are effectively outsourcing emissions along with manufacturing, have implications for future climate treaties, says one of the authors.


Carbon dioxide monitoring satellite crashes immediately after launch

(02/24/2009) The Orbiting Carbon Observatory, a $273 million satellite that would have collected measurements of carbon dioxide (CO2) in Earth's atmosphere to help better forecast the climate impacts of changes in CO2 levels, crashed about three minutes after launch, reports NASA. Researchers say the accident is a major setback for science.


Clinton, Obama botch opportunity on climate, forest conservation

(02/20/2009) The Obama administration squandered a chance this week to show U.S. leadership on climate and forest conservation issues, when Secretary of State Hillary Clinton, during a visit to Jakarta, failed to bring up a new Indonesian government decree allowing conversion of carbon-rich peat forests to oil-palm plantations.


CO2 levels rise to a new record

(02/17/2009) Atmospheric carbon dioxide concentrations climbed 2.28 parts-per-million (ppm) in 2008 to the highest level in at least 650,000 years — and possibly 20 million years — reports NOAA.


Burning rainforests, melting tundra could accelerate global warming well beyond current projections

(02/16/2009) Projections by the Intergovernmental Panel on Climate Change (IPCC) likely underestimate the scale and rapidity of climate change, warned a Stanford University scientist presenting Saturday at the annual meeting of the American Association for the Advancement of Science (AAAS) in Chicago.


Indonesia may allow conversion of peatlands for palm oil

(02/15/2009) The Indonesian government will allow developers to convert millions of hectares of land for oil palm plantations, reports The Jakarta Post. The decision threatens to undermine Indonesia's efforts to reduce greenhouse gas emissions from land use and fashion itself as a leader on the environment among tropical countries.


Nemo at risk from CO2 emissions? Ocean acidification may hurt baby fish

(02/02/2009) Increasing carbon dioxide concentrations in the atmosphere may have an unexpected impact on marine ecosystems: disorienting fish larvae. Research published in this week's issue of the Proceedings of the National Academy of Sciences (PNAS) found that ocean acidification disrupts the olfactory sense of clownfish larvae, making it difficult for the fish to find a habitat, which for clownfish is a sea anemone.


Beef drives 80% of Amazon deforestation

(01/29/2009) Nearly 80 percent of land deforested in the Amazon from 1996-2006 is now used for cattle pasture, according to new maps released today in a report by Greenpeace at the World Social Forum in Belem, Brazil. The report, Amazon Cattle Footprint: Mato Grosso: State of Destruction, confirms that cattle ranching is the primary driver of deforestation in Earth's largest rainforest: the Brazilian Amazon.


Biochar and reforestation may offer better global cooling potential than ocean fertilization

(01/28/2009) The first comprehensive assessment of the climate cooling potential of different geoengineering schemes has been conducted by researchers at the University of East Anglia (UEA). The results are published in the journal Atmospheric Chemistry and Physics Discussions



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