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News articles on climate change
Mongabay.com news articles on climate change in blog format. Updated regularly.
Chickens before cows: new study finds cattle have outsized greenhouse gas footprint
(12/19/2013) If you want to lower your greenhouse gas emissions, choose chicken or poultry over beef and dairy, according to a massive new study in the Proceedings of the National Academy of Sciences (PNAS). The study finds that global cattle production—both for beef and dairy—is responsible for a whopping 77 percent of the world's greenhouse gases attributed to livestock. Meanwhile, pork and poultry account for only 10 percent the greenhouse gases from livestock.
Top 10 HAPPY environmental stories of 2013
(12/19/2013) China begins to tackle pollution, carbon emissions: As China's environmental crisis worsens, the government has begun to unveil a series of new initiatives to curb record pollution and cut greenhouse emissions. The world's largest consumer of coal, China's growth in emissions is finally slowing and some experts believe the nation's emissions could peak within the decade. If China's emissions begin to fall, so too could the world's.
World suffers warmest November on record
(12/18/2013) Last month was the warmest November on record, according to new analysis from the NOAA. Temperatures were 0.78 degrees Celsius (1.40 degrees Fahrenheit) above the average November in the 20th Century. Global temperatures are on the rise due to climate change caused primarily by burning fossil fuels, but also by deforestation and land-use change.
Reforestation can't offset massive fossil fuels emissions
(12/13/2013) With the Australian, Japanese, and Canadian governments making an about-face on carbon-emissions reduction targets during the Warsaw climate summit, some experts are warning that the global need for solutions offsetting CO2 emissions is passing a "red line." Land-based mitigation practices comprise one of the solutions on the table as a result of both the United Nations Framework Convention on Climate Change (UFCCC) and the Kyoto Protocol; however, a paper published in Nature Climate Change by an international team led by Brendan Mackey, has raised the looming question of whether or not land-based practices can actually improve CO2 levels as much as hoped.
Top 10 Environmental Stories of 2013
(12/10/2013) 1. Carbon concentrations hit 400ppm while the IPCC sets global carbon budget: For the first time since our appearance on Earth, carbon concentrations in the atmosphere hit 400 parts per million. The last time concentrations were this high for a sustained period was 4-5 million years ago when temperatures were 10 degrees Celsius higher. Meanwhile, in the slow-moving effort to curb carbon emissions, the Intergovernmental Panel on Climate Change (IPCC) crafted a global carbon budget showing that most of the world's fossil fuel reserves must be left untouched if we are to avoid catastrophic climate change.
Making cap-and-trade work: the history and future of a proven program
(12/09/2013) While the merits for slowing climate change will be treated here as a given, the method for doing so looms elusive. In a recent article, I described pricing carbon through carbon taxes and carbon credits as a way to mitigate greenhouse gas emissions and slow global climate change. As there has been some emotive controversy towards both of these, I would like to analyze them more deeply, starting here with carbon credits.
Top scientists propose ambitious plans to safeguard world from devastating climate change
(12/05/2013) Two degrees is too much: that's the conclusion of a landmark new paper by top economists and climatologists, including James Hansen formerly of NASA. The paper, appearing in the open-access journal PLoS ONE, argues that global society must aim for only one degree Celsius of warming above pre-industrial levels to avoid the worst impact of climate change, and not the two degrees Celsius agreed on by the world's governments. But given that the world's governments are not yet on track to even achieve the two degree target, how could we lock in just one? A combination of renewable energy, nuclear power, and, most importantly, a rising price on carbon emissions, according to the eighteen scientists.
Humans are not apex predators, but meat-eating on the rise worldwide
(12/05/2013) A new paper in Proceedings of the National Academy of Sciences has measured the "trophic level" of human beings for the first time. Falling between 1 and 5.5, trophic levels refer to where species fit on the food chain. Apex predators like tigers and sharks are given a 5.5 on trophic scale since they survive almost entirely on consuming meat, while plants and phytoplankton, which make their own food, are at the bottom of the scale. Humans, according to the new paper, currently fall in the middle: 2.21. However, rising meat-eating in countries like China, India, and Brazil is pushing our trophic level higher with massive environmental impacts.
86 percent of big animals in the Sahara Desert are extinct or endangered
(12/03/2013) Bigger than all of Brazil, among the harshest ecosystems on Earth, and largely undeveloped, one would expect that the Sahara desert would be a haven for desert wildlife. One would anticipate that big African animals—which are facing poaching and habitat loss in other parts of the world—would thrive in this vast wilderness. But a new landmark study in Diversity and Distributions finds that the megafauna of the Sahara desert are on the verge of total collapse.
Not all mangroves are created equal: new map reveals carbon storage hot-spots
(11/26/2013) Mangrove forests are one of the most important weapons in the fight against climate change. Not only do they directly store huge amounts of carbon, but they actively capture additional carbon dioxide from the atmosphere and sequester it in their soils. When mangroves are destroyed, huge quantities of carbon are released into the atmosphere, significantly contributing to greenhouse gas emissions.
Microhabitats could buffer some rainforest animals against climate change
(11/25/2013) As temperatures increase worldwide due to anthropogenic climate change, scientists are scrambling to figure out if species will be able to survive rapidly warming ecosystems. A new study in Global Change Biology offers a little hope. Studying reptiles and amphibians in the Philippines, scientists say some of these species may be able to seek refuge in cooler microhabitats, such as tree holes or under the soil, in order to stay alive during intensifying heatwaves. But, the scientists' stress, the shelter from microhabitats can only protect so far.
Satellites reveal browning mountain forests
(11/22/2013) In a dramatic response to global warming, tropical forests in the high elevation areas of five continents have been "browning" since the 1990s. They have been steadily losing foliage, and showing less photosynthetic activity. Scientists analyzed the forest cover by using satellites to measure sunlight bouncing off the surface of the earth, then determining the different surface types via reflection patterns.
Citizen groups walk out of UN Climate Summit to protest lack of ambition
(11/21/2013) Thirteen citizen groups—including Oxfam, Greenpeace, and WWF—have walked out of ongoing climate talks in Warsaw to protest what they view as a lack of ambition and long-stalled progress on combating global climate change. Nearly 200 governments are currently meeting in Warsaw, Poland at the the 19th Conference of the Parties (COP) for the UN Framework Convention on Climate Change (UNFCCC), which is meant to prepare the way for a new agreement in 2015.
The emissions gap and the forest contribution (commentary)
(11/20/2013) Shortly before the Warsaw climate talks, the United Nations Environmental Programme (UNEP) released its Emissions Gap report, highlighting the growing gap between the emissions reductions that are needed to stay below 2 degrees and the trajectory the world is on at the moment. The report clearly identifies forests as one of the most important options to reduce emissions which can be delivered in the short term. While parties urgently need to start phasing out fossil fuels and stop emissions from fossil fuels no later than 2050, protecting forests now can help significantly to keep a realistic chance of staying below 2 degrees.
Mining the Heart of Borneo: coal production in Indonesia
(11/20/2013) Indonesia is the world’s top exporter of coal – supplying energy to China, India, and elsewhere. Indonesia is also ranked the fourth top emitter of greenhouse gases in the world (after China, the USA, and the European Union), largely due to high deforestation rates and peatland fires. This ranking does not take into consideration the carbon emissions that Indonesia ‘exports’ in the form of coal.
UN talks tough to global coal industry
(11/19/2013) Yesterday, at the International Coal and Climate Summit—just a couple miles from the ongoing UN Climate Summit—Christiana Figueres delivered a speech unlike anything ever heard at a coal industry meeting before. Figueres, the Executive Director of the UN Framework Convention on Climate Change (UNFCCC), took time off from wrangling world leaders and officials toward a climate agreement to talk tough to an industry currently worth around $3 trillion.
Carbon emissions set to hit new record high in 2013
(11/19/2013) The amount of carbon dioxide emitted into the atmosphere in 2013 is expected to hit a new high of 36 billion tonnes, according to a Carbon Budget released today by the Global Carbon Project (GCP). This is a 2.1 percent rise from 2012 based on data from the same group. 'We have exhausted about 70 per cent of the cumulative emissions that keep global climate change likely below two degrees,' said GCP member, Pierre Friedlingstein, with the University of Exeter. 'In terms of CO2 emissions, we are following the highest climate change scenario of the Intergovernmental Panel on Climate Change released in September.'
Fracking: the good, the bad and the ugly
(11/18/2013) The last few years have ushered in a new national and global awareness of fracking, the 150-year-old technology for extracting natural gas and oil from rock. Fracking, short for hydraulic fracturing, uses ultra-high-pressure slurries to create hairline fractures throughout solid rock. Oil, and more frequently gas, comes rushing out while sand from the mixture holds the fractures open in this nearly alchemical process. As many readers are aware, there are two very divisive schools of thought on fracking. One side touts it as the future of energy. The other derides fracking as inherently toxic and demands its immediate and permanent cessation. Like so many aspects of life, the truth lies somewhere in between.
60,000 protest in Australia to keep carbon price
(11/18/2013) Around 60,000 Australians marched yesterday across the country calling on their government not to go backwards on climate action, according to organizers. Australia has taken a sudden U-turn on climate policy with the election of Prime Minister Tony Abbott in September, including legislation to end its carbon pricing, cutting funding to renewable energies, and obstructing progress at the ongoing UN Climate Summit in Warsaw.
Japan pledges to raise carbon emissions, instead of cutting them
(11/18/2013) In 2009, Japan pledged to cut its carbon emissions by 25 percent based on 1990 levels within 11 years. Four years later—including a nuclear meltdown at Fukushima—and Japan has reset its goal with a new target to cut emissions by 3.8 percent based on 2005 levels at the UN Climate Summit in Warsaw, Poland. But, the new target, which received widespread condemnation when announced on Friday, actually results in a 3.1 percent rise in emissions when viewed from the widely-accepted 1990 baseline.
World's most vulnerable nation to climate change turns to coal power
(11/18/2013) In October, a global risks analysis company, Maplecroft, named Bangladesh the world's most vulnerable nation to climate change by 2050. The designation came as little surprise, since Bangladesh's government and experts have been warning for years of climatic impacts, including rising sea levels, extreme weather, and millions of refugees. However, despite these very public warnings, in recent years the same government has made a sudden turn toward coal power—the most carbon intensive fuel source—with a master plan of installing 15,000 megawatts (MW) of coal energy by 2030, which could potentially increase the country's current carbon dioxide emissions by 160 percent.
Tiny algae signal big changes for warming Arctic lakes
(11/15/2013) The mighty polar bear has long been the poster child for the effects of global warming in the Arctic, but the microscopic diatom tells an equally powerful story. Diatoms are a type of algae that form the base of the food chain in watery habitats the world over. Disturbances among lake diatoms have exposed the impacts of rapid warming in the Hudson Bay Lowlands of eastern Canada, researchers reported Oct. 9 in the Proceedings of the Royal Society B
Is Australia becoming the new Canada in terms of climate inaction?
(11/14/2013) For many concerned about climate change, Australia has suddenly become the new Canada. With the election of Tony Abbott as Prime Minister in September, the land down under has taken a sudden U-turn on climate policy, including pushing to end its fledgling carbon emissions program which was only implemented in 2012 and cutting funding for renewable energy. These move come at a time when Australia has just undergone its warmest 12 months on record and suffered from record bushfires.
Richest countries spent $74 billion on fossil fuel subsidies in 2011, eclipsing climate finance by seven times
(11/13/2013) In 2011, the top 11 richest carbon emitters spent an estimated $74 billion on fossil fuel subsidies, or seven times the amount spent on fast-track climate financing to developing nations, according to a recent report by the Overseas Development Institute. Worldwide, nations spent over half a trillion dollars on fossil fuel subsidies in 2011 according to the International Energy Agency (IEA).
Philippines' delegate calls out climate change deniers after Haiyan
(11/12/2013) Yesterday, the Filipino delegate to the ongoing climate summit, Naderev 'Yeb' Saño, dared climate change deniers to take a hard look at what's happening not just in the Philippines, but the whole world. Over the weekend, the Philippines was hit by what may have been the largest typhoon to ever make landfall—Typhoon Haiyan. Reports are still coming in days later, but the death toll may rise to over 10,000 with whole cities simply swept away.
Redeeming REDD: a conversation with Michael Brown
(11/11/2013) In Redeeming REDD: Policies, Incentives and Social Feasibility for Avoided Deforestation, anthropologist Michael Brown relays a constructive critique of the contemporary aims, standards and modalities for mitigating climate change by reducing emissions from deforestation and degradation (REDD). Brown advocates for REDD as a viable mechanism for the long-term pro-poor conservation and restoration of tropical forests as well—but only if local forest dwellers and Indigenous. Peoples can join the negotiating table and act as forest stewards. Local people must first be empowered to make 'socially feasible' decisions that are necessary for their livelihoods and well-being. In other words, there can be no environmentalism without credible local leadership, which requires investment in capacity building at the local level for sustainable institutions.
Delegate for the Philippines vows to stop eating at climate summit
(11/11/2013) Following the devastation wrought by Typhoon Haiyan—which is arguably the strongest typhoon to ever make landfall—Filipino delegate, Naderev 'Yeb' Saño, has vowed to go on a fast at the UN Climate Summit that opened today in Warsaw, Poland. Saño made the vow during a powerful speech in which he said he would fast, 'until we stop this madness.'
Bangladesh plans massive coal plant in world's biggest mangrove forest
(11/11/2013) On October 22nd Bangladeshi and Indian officials were supposed to hold a ceremony laying the foundation stone for the Rampal power plant, a massive new coal-fired plant that will sit on the edge of the Sundarbans, the world's largest mangrove forest. However, the governments suddenly cancelled the ceremony, instead announcing that the project had already been inaugurated in early October by the countries' heads of state via a less-ornate Skype call. While the governments say the change was made because of busy schedules, activists contend the sudden scuttling of the ceremony was more likely due to rising pressure against the coal plant, including a five-day march in September that attracted thousands.
Bay Area pledges to slash greenhouse gas emissions by 80 percent by 2050
(11/11/2013) While many of the world's national governments move tepidly (if at all) to combat climate change, cities are showing increasing leadership. The San Francisco Bay Area's Air District Board signed off last week on a measure to cut greenhouse gas emissions by 80 percent within less than 40 years time as based on 1990 levels. The measure follows the same goal as an executive order made by California governor, Arnold Schwarzenegger, in 2005.
Amazon deforestation could cause droughts in California
(11/08/2013) Complete deforestation of the Amazon rainforest could reduce rainfall in the Pacific Northwest by up to 20 percent and snowpack in the Sierra Nevada by up to 50 percent, suggests new research published in the Journal of Climate. The study is based on high resolution computer modeling that stripped the Amazon of its forest cover and assessed the potential impact on wind and precipitation patterns. While the scenario is implausible, it reveals the global nature of the ecological services afforded by the world's largest rainforest.
CO2 concentrations hit new high last year
(11/06/2013) The concentrations of carbon dioxide in the atmosphere hit a record high last year, according to a new report by the World Meteorological Organization (WMO). While this was not a surprise given still-rising global emissions, the concentration rose significantly more than the average this decade. According to the WMO's annual greenhouse gas bulletin, CO2 concentrations hit 393.1 parts per million (ppm) in 2012.
Featured video: trailer for James Cameron's new global warming series
(11/05/2013) Showtime has recently released its first trailer for the network's new series on the impacts of global warming worldwide, entitled Years of Living Dangerously. The series, which will debut in April 2014, had employed some of America's most well-regarded politicians, journalists, intellectuals, and actors to tell how climate change is already impacting communities around the world.
Zoos join fossil fuel divestment movement
(11/05/2013) Last month, over a hundred representatives from zoos and aquariums around the world joined climate activism group, 350.org, pledging that their institutions would take action against global warming, including the possibility of divesting from fossil fuel companies. The effort, dubbed Zoos and Aquariums for 350, was launched during the annual meeting of the Conservation Breeding Specialist Group (CBSG).
'Remarkable year': could 2012 mark the beginning of a carbon emissions slowdown?
(10/31/2013) Global carbon dioxide emissions hit another new record of 34.5 billion tons last year, according to a new report by the Netherlands Environment Assessment Agency and the European Commission's Joint Research Centre, but there may be a silver lining. Dubbing 2012 a "remarkable year," the report found that the rate of carbon emission's rise slowed considerably even as economic growth continued upward.
Renewable energy revolution will require better management of metals
(10/30/2013) If we are to avoid catastrophic climate change, scientists say global society will need a rapid and aggressive replacement of fossil fuel energy for renewable, such as solar, wind, geo-thermal, and tidal. While experts say a renewable revolution would not only mitigate climate change but also likely invigorate economies and cut life-threatening pollution, such a revolution would not come without challenges. According to a new commentary piece in Nature Geoscience one of the largest challenges of the renewable revolution will be rising demand for metals, both rare and common.
America's growing inequality helped scuttle the global climate change initiative
(10/28/2013) The link between good economic policy and climate change mitigation is instigated by policies such as the triple-bottom line, carbon limitations, and pro-environmental legislation. However, economic inequality is a little explored piece of the successful fight against climate change. For climate change mitigation and good economic policy to work, economic growth must be broad-based. Indeed, the inability for the United States to make a coherent and progressive stance on climate change has effectively stymied the global initiative—and is in part due to growing inequality. Due to the nation's market size and political power, U.S. policy is often a decisive factor for many global issues.
Shanghai to ban coal by 2017
(10/28/2013) China's largest city and one of the world's biggest, Shanghai, is set to ban coal burning in just four years, according to a new Clean Air Action Plan. The city-wide ban on coal burning is one effort among many to get Shanghai's infamous smog under control as well as another sign that China has begun to take its pollution problems more seriously.
First study of little-known mammal reveals climate change threat
(10/28/2013) One of the world's least-known flying foxes could face extinction by rising seas and changing precipitation patterns due to global warming, according to a new study in Zookeys. The research, headed by Donald Buden with the College of Micronesia, is the first in-depth study of the resident bats of the remote Mortlock Islands, a part of the Federated States of Micronesia.
Global warming could shift tropical rainfall
(10/21/2013) Ongoing burning of fossil fuels could flip which portion of the tropics receive more rainfall: the southern hemisphere or the northern. Currently, the northern hemisphere tropics is the wetter of the two, but why this is has long baffled scientists. Now, new research in Nature Geoscience has discovered that rainfall in the tropics is in part driven by massive ocean currents that travel back-and-forth between the Arctic and Antarctic, a process known as ocean overturning circulation.
David Attenborough: someone who believes in infinite growth is 'either a madman or an economist'
(10/16/2013) Sir David Attenborough has said that people living in poorer countries are just as concerned about the environment as those in the developed world, and "exporting environmentalism" isn't necessarily an "uphill struggle". The veteran broadcaster said ideas about protecting the natural world were not unwelcome in less developed nations—but added that wealthier countries should work to improve women's rights around the world to bring down birth rates and avoid overpopulation.
France upholds nationwide ban on fracking
(10/14/2013) France's landmark ban on fracking has survived constitutional challenges lobbed by U.S.-company, Schuepbach Energy. On Friday, the nation's Constitutional Council decided that the ban did not violate France's constitution. Passed in 2011 under then President Nicolas Sarkozy, the ban has since been upheld by current President Francios Hollande.
Sea and storm: coastal habitats offer strongest defense
(10/11/2013) Surging storms and rising seas threaten millions of U.S. residents and billions of dollars in property along coastlines. The nation's strongest defense, according to a new study by scientists with the Natural Capital Project at the Stanford Woods Institute for the Environment, comes from natural coastal habitats.
Divestment campaign could cause considerable damage to fossil fuel industry
(10/08/2013) A campaign to persuade investors to take their money out of the fossil fuel sector is growing faster than any previous divestment campaign and could cause significant damage to coal, oil and gas companies, according to a study from the University of Oxford. The report compares the current fossil fuel divestment campaign, which has attracted 41 institutions since 2010, with those against tobacco, apartheid in South Africa, armaments, gambling and pornography. It concludes that the direct financial impact of such campaigns on share prices or the ability to raise funds is small but the reputational damage can still have major financial consequences.
Russia charges non-violent activists with 'piracy' for protesting Arctic oil drilling
(10/07/2013) In what is being described by Greenpeace as an 'imaginary offense,' Russia has charged 30 people with piracy after activists protested against oil exploitation in the Arctic. The 30 charged included not only protestors, but a British journalist and Russian videographer who were on board Greenpeace's ship, the Arctic Sunrise, when it was stormed by the Russian military late last month.
Myanmar faces new conservation challenges as it opens up to the world
(10/04/2013) For decades, one of Southeast Asia's largest countries has also been its most mysterious. Now, emerging from years of political and economic isolation, its shift towards democracy means that Myanmar is opening up to the rest of the world. Myanmar forms part of the Indo-Burma biodiversity hotspot, and some of the largest tracts of intact habitat in the hotspot can be found here.
Climate change could increase diarrheal disease in Botswana
(10/03/2013) Climate change may increase the incidence of diarrheal disease in Botswana, according to a recent study in the International Journal of Environmental Research and Public Health. "Diarrheal disease is a very important public health problem in Botswana," said lead author Kathleen Alexander, who led a unique 30-year analysis (1974-2003) on the incidence of diarrhea in Botswana. "As a water-restricted country, Botswana is predicted to be heavily impacted by climate change.
Governments should respond to ocean acidification 'as urgently as they do to national security threats'
(10/03/2013) The oceans are more acidic now than they have been for at least 300m years, due to carbon dioxide emissions from burning fossil fuels, and a mass extinction of key species may already be almost inevitable as a result, leading marine scientists warned on Thursday. An international audit of the health of the oceans has found that overfishing and pollution are also contributing to the crisis, in a deadly combination of destructive forces that are imperiling marine life, on which billions of people depend for their nutrition and livelihood.
Clock is ticking on fossil fuels: for first time IPCC scientists outline global carbon budget
(10/01/2013) The world's leading climate scientists have set out in detail for the first time how much more carbon dioxide humans can pour into the atmosphere without triggering dangerous levels of climate change—and concluded that more than half of that global allowance has been used up.
'Yet another wakeup call': global warming is here, it's manmade, and we're not doing enough to stop it
(09/28/2013) Human actions are responsible for warming the Earth, reconfirms the landmark Intergovernmental Panel on Climate Change (IPCC) report released today, the first mammoth report on the physical science of climate change issued in seven years. Scientists now say they are 95-100 percent certain that human actions—such as burning fossil fuels and cutting down forests—are behind the observed rise in global temperatures since at least 1950. Average temperatures have risen 0.85 degrees Celsius since 1880, but the new report warns that depending on how much more fossil fuels are burnt, temperature rises could exceed 4 degrees Celsius (9 degrees Fahrenheit) with untold consequences for global society.
Climate change pushing tropical trees upslope 'exactly as predicted'
(09/27/2013) Tropical tree communities are moving up mountainsides to cooler habitats as temperatures rise, a new study in Global Change Biology has found. By examining the tree species present in ten one-hectare plots at various intervals over a decade, researchers found that the proportion of lowland species increased in the plots at higher elevations. The study, which was undertaken in Volcan Barva, Costa Rica, adds to a growing body of evidence that climate change is having an impact on species range distributions.
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