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News articles on climate change
Mongabay.com news articles on climate change in blog format. Updated regularly.
(05/15/2013) With islands and atolls scattered across the ocean, the small Pacific island states are among those most exposed to the effects of global warming: increasing acidity and rising sea level, more frequent natural disasters and damage to coral reefs. These micro-states, home to about 10 million people, are already paying for the environmental irresponsibility of the great powers.
Eat insects to mitigate deforestation and climate change
(05/14/2013) A new 200-page-report by the UN Food and Agriculture Organization (FAO) urges human society to utilize an often-ignored, protein-rich, and ubiquitous food source: insects. While many in the industrialized west might turn up their noses at the idea of eating insects, already around 2 billion people worldwide eat over 1,900 species of insect, according to the FAO. Expanding insect-eating, the authors argue, may be one way to combat rising food needs, environmental degradation, and climate change.
Mount Everest glaciers have shrunk 13% in 50 years
(05/13/2013) Glaciers in the Mount Everest region have shrunk by 13 percent and the snow-line has shifted 180 meters (590 feet) higher during the past 50 years, according to a study that will be presented this week at a conference organized by the American Geophysical Union.
Climate change to halve habitat for over 10,000 common species
(05/13/2013) Even as concentrations of carbon dioxide in the atmosphere hit 400 parts per million (ppm) for the first time in human history last week, a new study in Nature Climate Change warns that thousands of the world's common species will suffer grave habitat loss under climate change.
Last time CO2 hit 400 ppm, temperature was 8C warmer, seas 40m higher than today
(05/12/2013) The future of a globally warmed world has been revealed in a remote meteorite crater in Siberia, where lake sediments recorded the strikingly balmy climate of the Arctic during the last period when greenhouse gas levels were as high as today.
A new world?: carbon dioxide concentrations in atmosphere hit 400 ppm
(05/11/2013) For the first time since homo sapiens evolved, concentrations of carbon dioxide in the atmosphere have struck 400 parts per million (ppm) due to burning fossil fuels. The National Oceanic and Atmospheric Administration (NOAA) reports that readings of carbon dioxide at Mauna Loa Observatory in Hawaii hit the symbolic number on Thursday and are expected to continue rising in coming years. The last time concentrations were this high for a sustained period was 4-5 million years ago when sea levels were 5-40 meters higher than today and the poles were 10 degrees Celsius hotter. During this epoch, forests grew along the shores of the Arctic Ocean and coral reefs were almost wholly absent.
Featured video: How climate change is messing with the jetstream
(05/08/2013) Weather patterns around the globe are getting weirder and weirder: heat waves and record snow storms in Spring, blasts of Arctic air followed by sudden summer, record deluges and then drought.
The Hawaiian silversword: another warning on climate change
(05/06/2013) The Hawaiian silversword (Argyroxyphium sandwicense), a beautiful, spiny plant from the volcanic Hawaiian highlands may not survive the ravages of climate change, according to a new study in Global Change Biology. An unmistakable plant, the silversword has long, sword-shaped leaves covered in silver hair and beautiful flowering stalks that may tower to a height of three meters.
'Suffering...without witnesses': over a quarter of a million people perished in Somali famine
(05/06/2013) A new report estimates that 258,000 people died in 2011 during a famine in Somalia, the worst of such events in 25 years and a number at least double the highest estimations during the crisis. Over half of the victims, around 133,000, were children five and under. The report, by the UN Food and Agricultural Organization (FAO), argues that the international community reacted too late and too little to stem the mass starvation brought on by government instability, conflict, high food prices, and failed rains, the last of which has been linked to climate change by some scientists.
Sugarcane production impacting local climate in Brazil
(05/01/2013) Intensification of Brazil's sugarcane industry in response to rising demand for sugar-based ethanol could have impacts on the regional climate reports a new study by researchers from Arizona State University, Stanford University and the Carnegie Institution for Science. Following the conversion of cerrado grasslands into sugarcane in Brazil, a recent study in Geophysical Research Letters found local cooling that approached 1 degree Celsius during the growing season and maximum local warming near 1 degree Celsius post-harvest.
Ten U.S. cities pledge to kick fossil fuel investments to the curb
(05/01/2013) The cities of San Francisco and Seattle have pulled their money out of fossil fuel companies, taking a climate divestment campaign from college campuses to local government. The campaign group 350.org said on Thursday it had won commitments from a total of 10 cities and towns to divest from 200 of leading fossil fuel companies.
Indigenous tribes say effects of climate change already felt in Amazon rainforest
(04/30/2013) Tribal groups in Earth's largest rainforest are already being affected by shifts wrought by climate change, reports a paper published last week in the British journal Philosophical Transactions of the Royal Society B. The paper, which is based on a collection of interviews conducted with indigenous leaders in the Brazilian Amazon, says that native populations are reporting shifts in precipitation patterns, humidity, river levels, temperature, and fire and agricultural cycles. These shifts, measured against celestial timing used by indigenous groups, are affecting traditional ways of life that date back thousands of years.
What if companies actually had to compensate society for environmental destruction?
(04/29/2013) The environment is a public good. We all share and depend on clean water, a stable atmosphere, and abundant biodiversity for survival, not to mention health and societal well-being. But under our current global economy, industries can often destroy and pollute the environment—degrading public health and communities—without paying adequate compensation to the public good. Economists call this process "externalizing costs," i.e. the cost of environmental degradation in many cases is borne by society, instead of the companies that cause it. A new report from TEEB (The Economics of Ecosystems and Biodiversity), conducted by Trucost, highlights the scale of the problem: unpriced natural capital (i.e. that which is not taken into account by the global market) was worth $7.3 trillion in 2009, equal to 13 percent of that year's global economic output.
Climate Myths: how climate denialists are getting away with bad science
(04/29/2013) In Climate Myths: The Campaign Against Climate Science, Dr. John J. Berger deconstructs the climate change denialists' myths in simple, easy-to-read terms. According to the Pew Research Center: "Nearly seven-in-ten (69%) [Americans] say there is solid evidence that the earth’s average temperature has been getting warmer over the past few decades, up six points since November 2011 and 12 points since 2009." Yet implementing national-level climate change mitigation legislation is not occurring in the U.S.
Great tits unaffected by warmer springs
(04/26/2013) The population of a widely dispersed bird species is relatively unaffected by warmer springs, indicating that some species may be adapting to shifts caused by climate change, reports a study published in the journal Science.
Top security official in Nigeria blames climate change for worsening insecurity
(04/25/2013) Climate change is in part to blame for rising conflict and crime in Nigeria, according to the president's National Security Advisor, Colonel Sambo Dasuki. Speaking to the House Committee on Climate Change, Dasuki said that the rise of Boko Haram insurgents, a jihadist group in northern Nigeria, and worsening crime was linked to climate change reports All Africa.
China to phase out super greenhouse gas
(04/24/2013) Some eight billion tonnes of greenhouse gases could be kept out of the atmosphere if China sticks to a deal with the United Nation's Montreal Protocol to eliminate the production of hydro-fluorocarbons (HCFCs). In return for phasing out HCFC production by 2030, the Multilateral Fund of the Montreal Protocol on Substances has promised China of funding up to $385 million.
The river of plenty: uncovering the secrets of the amazing Mekong
(04/23/2013) Home to giant catfish and stingrays, feeding over 60 million people, and with the largest abundance of freshwater fish in the world, the Mekong River, and its numerous tributaries, brings food, culture, and life to much of Southeast Asia. Despite this, little is known about the biodiversity and ecosystems of the Mekong, which is second only to the Amazon in terms of freshwater biodiversity. Meanwhile, the river is facing an existential crisis in the form of 77 proposed dams, while population growth, pollution, and development further imperil this understudied, but vast, ecosystem.
'Carbon bubble' could cause next global financial crisis
(04/22/2013) The world could be heading for a major economic crisis as stock markets inflate an investment bubble in fossil fuels to the tune of trillions of dollars, according to leading economists. "The financial crisis has shown what happens when risks accumulate unnoticed," said Lord (Nicholas) Stern, a professor at the London School of Economics. He said the risk was "very big indeed" and that almost all investors and regulators were failing to address it.
Despite unseasonable cold in EU and U.S., March was tenth warmest on record
(04/22/2013) While the month of March saw colder-than-average temperatures across a wide-swath of the northern hemisphere—including the U.S., southern Canada, Europe, and northern Asia—globally, it was the tenth warmest March on record in the last 134 years, putting it in the top 7 percent.
Last 30 years were the warmest in the last 1,400 years
(04/21/2013) From 1971 to 2000, the world's land areas were the warmest they have been in at least 1,400 years, according to a new study in Nature Geoscience. The massive new study, involving 80 researchers from around the world with the Past Global Changes (PAGES) group, is the first to look at continental temperature changes over two thousand years, providing insights into regional climatic changes from the Roman Empire to the modern day. According to the data, Earth's land masses were generally cooling until anthropogenic climate change reversed the long-term pattern in the late-19th Century.
At top of the world, activists say exploiting Arctic is 'utter madness'
(04/17/2013) Four young explorers including American actor Ezra Miller have planted a flag on the seabed at the north pole and demanded the region is declared a global sanctuary. The expedition, organized by Greenpeace, saw the flag lowered in a time capsule that contained the signatures of nearly 3 million people who are calling for a ban on exploitation in the region.
Hate flying? climate change will make it even rougher
(04/10/2013) Climate change will lead to bumpier flights caused by increased mid-air turbulence, according to an analysis by scientists of the impact of global warming on weather systems over the next four decades. The increasing air turbulence results from the impact of climate change on the jet streams, the fast, mile-wide winds that whistle round the planet at the same altitude as airliners. The shifting of the jet stream over Europe has also been blamed for the UK's wash-out summer in 2012 and frozen spring this year.
Featured video: stemming human-caused fires in the Amazon
(04/09/2013) A new series of 5 films highlights how people use fire in the Amazon rainforest and how such practices can be mitigated. Collectively dubbed "Slash & Burn" each film explores a different aspect of fire-use in the Amazon. In recent years the Amazon has faced unprecedented droughts, possibly linked to climate change and vast deforestation, making the issue of human-started fires even more important.
Norwegian Pinot Noir?: global warming to drastically shift wine regions
(04/08/2013) In less than 40 years, drinking wine could have a major toll on the environment and wildlife, according to a new study in the Proceedings of the National Academy of Sciences (PNAS). The study finds that climate change will likely force many vineyards to move either north or to higher altitudes, leading to habitat loss, biodiversity declines, and increased pressure for freshwater. Some famous wine-growing areas could be lost, including in the Mediterranean, while development of new wine areas—such as those in the Rocky Mountains and northern Europe—could lead to what the the scientists describe as "conservation conflicts."
U.S. Republican voters want action on climate change
(04/03/2013) A new poll by the Center for Climate Change Communication (4C) at George Mason University finds that a majority of U.S. citizens who identify as Republicans or Republican-leaning independents want the government to do more to tackles climate change. Sixty-two percent of those polled said that the U.S. government "absolutely should" or "probably should" takes steps to address climate change. This goes against the views of many Republican congressmen—as well as the party platform—who largely oppose action on climate change.
Proposed coal plant threatens Critically Endangered Philippine cockatoo
(04/02/2013) One kilometer off the Philippine island of Palawan lays the Rasa Island Wildlife Sanctuary; here forest grows unimpeded from a coral island surrounded by mangroves and coral reefs. Although tiny, over a hundred bird species have been recorded on the island along with a major population of large flying foxes, while in the waters below swim at least 130 species of coral fish, three types of marine turtles, and that curious-looking marine mammal, dugongs. Most importantly, perhaps, the island is home to the world's largest population of Philippine cockatoos (Cacatua haematuropygia), currently listed as Critically Endangered. But, although uninhabited by people, Rasa Island may soon be altered irrevocably by human impacts.
Carbon Management in the Built Environment - book review
(04/02/2013) Carbon Management in the Built Environment, written by Rohinton Emmanuel and Keith Baker, is the complete introductory textbook covering low carbon management for the built environment. Carbon Management in the Built Environment integrates climate change science, design, materials science, and policy into a classroom friendly text.
By 2050 much of the Arctic could be green
(04/01/2013) Warming about twice as fast as the rest of the world, the Arctic is already undergoing massive upheavals from climate change: summer sea ice is thinning and vanishing, land based ice sheets are melting, and sea levels are rising. Now a new study in Nature Climate Change predicts that vegetation cover in the Arctic could expand by over 50 percent by 2050. Although increased vegetation would sequester additional carbon, this would be more-than-offset by the loss of the albedo effect, whereby sunlight bounces off white (snow and ice covered) parts of the Earth.
Scientists find the 'missing heat' of global warming 700 meters below the sea
(03/28/2013) Critics of climate change often claim that warming has stopped since the late 1990s. While this is categorically false (the last decade was the warmest on record and 2005 and 2010 are generally considered tied for the warmest year), scientists do admit that warming hasn't occurred over land as rapidly as predicted in the last ten years, especially given continually rising greenhouse gas emissions. But a recent study in Geophysical Research Letters has found this so-called missing heat: 700 meters below the surface of the ocean.
Extreme cold linked to climate change, say scientists
(03/26/2013) Climate scientists have linked the massive snowstorms and bitter spring weather now being experienced across Britain and large parts of Europe and North America to the dramatic loss of Arctic sea ice.
Carbon Markets or Climate Finance - book review
(03/25/2013) Carbon markets or climate finance? This is the question posed by Carbon Markets or Climate Finance, edited by Axel Michaelowa. First of all, let’s define climate finance as the financial resources used to mitigate and adapt to climate change.
Planet organic: achieving sustainable food security and environmental gains
(03/19/2013) The global farmland area certified organic has expanded more than threefold to 37 million hectares since 1999, according to new research conducted by the Worldwatch Institute. The Institute argues that organic farming has the potential to contribute to sustainable food security by improving nutrition intake and sustaining rural livelihoods, while reducing vulnerability to climate change and enhancing biodiversity.
Burning coal may be killing over 100,000 people in India every year
(03/13/2013) India's dependence on coal-fired power plants for energy may be leading directly to the deaths of 80,000 to 115,000 of its citizens every year, according to the first ever report on the health impacts of coal in the country. The report, commissioned by the Conservation Action Trust and Greenpeace-India, deals only with the direct health impact of coal and not climate change. But even ignoring the rising pain of global warming, the bleak report outlines that coal consumption in India is causing over 20 million asthma attacks, nearly a million emergency room visits, and killing some 10,000 children under five annually.
U.S. Admiral: climate change, not North Korea, biggest threat in the Pacific
(03/13/2013) This week, Admiral Samuel J. Locklear II, the head of U.S. military forces in the Pacific, told The Boston Globe that climate change was the gravest threat in the region. While such an assessment may be surprising, given North Korea's recent nuclear tests, the U.S. military has long viewed climate change as a massive destabilizing force on global security.
Rainforests may be more resilient to global warming - in isolation - than previously forecast
(03/11/2013) Tropical forests may be less sensitive to global warming than previously thought, argues a new study published in Nature Geoscience.
Human activity driving unprecedented temperature shift
(03/08/2013) Average global temperatures are now higher than any point during the past 4,000 years despite being in the midst of what should be a cooling interval, reports a new study published in the journal Science.
Increasing number of Americans believe climate change is real
(03/08/2013) An increasing number of Americans believe there is evidence for climate change, reveals a new poll conducted by researchers at the University of Michigan.
Near-record jump in carbon concentrations in global atmosphere last year
(03/06/2013) Carbon dioxide now makes up around 395 parts per million in the atmosphere, according to new data from the National Oceanic Atmospheric Administration (NOAA). Measuring atmospheric carbon in Mauna Loa, Hawaii, the NOAA notes that last year saw a jump of 2.67 parts per million, second only to a record jump in carbon concentrations in 1998—2.93 parts per million. The news further dampens hopes that nations will stick to their goal of keeping global temperatures from rising more than 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels.
Warnings of global ecological tipping points may be overstated
(03/05/2013) There's little evidence that the Earth is nearing a global ecological tipping point, according to a new Trends in Ecology and Evolution paper that is bound to be controversial. The authors argue that despite numerous warnings that the Earth is headed toward an ecological tipping point due to environmental stressors, such as habitat loss or climate change, it's unlikely this will occur anytime soon—at least not on land. The paper comes with a number of caveats, including that a global tipping point could occur in marine ecosystems due to ocean acidification from burning fossil fuels. In addition, regional tipping points, such as the Arctic ice melt or the Amazon rainforest drying out, are still of great concern.
New York Times slashes environmental coverage
(03/05/2013) On Friday at 5 PM the New York Times announced it was shutting down it Green blog, which highlighted diverse stories online, from energy to endangered species to climate change. The loss of the New York Times environment blog follows shortly after the paper announced it was dismantling its environment desk and moving all of the reporters to other beats.
Global warming to open new Arctic sea lanes
(03/05/2013) Rapidly melting sea ice in the Arctic due to global warming will open new shipping lanes that will speed transit between northern Asia, Europe, Canada and Alaska but unleash new safety, environmental and legal issues, according to scientists writing in this week's issue of the Proceedings of the National Academy of Sciences.
Tokelau, 1st county with 100% renewable energy, leads call for climate action
(03/02/2013) The tiny territory of Tokelau is today leading a call by 14 Pacific island nations for the world to take action to stop climate change.
Leatherback sea turtles suffer 78 percent decline at critical nesting sites in Pacific
(02/27/2013) The world's largest sea turtle, the leatherback (Dermochelys coriacea), is vanishing from its most important nesting sites in the western Pacific, according to a new study in Ecosphere. Scientists found that leatherback turtle nests have dropped by 78 percent in less than 30 years in the Bird's Head Peninsula on the island of New Guinea. Worryingly, these beaches account for three-fourths of the western Pacific's distinct leatherback population; globally the leatherback is listed as Critically Endangered by the IUCN Red List, the highest rating before extinction.
Scientists: stop treating population growth as a 'given' and empower women
(02/27/2013) Climate change, biodiversity loss, resource depletion, water scarcity, and land issues: almost all of the world's environmental problems are underpinned by too many people inhabiting a finite planet. A new study in the Proceedings of the Royal Society B warns that overpopulation—combined with over-consumption—is threatening to push the entire globe into "a collapse of global civilization." But cultural changes, especially more empowerment of women and access to contraceptives, may hold the key to reducing population growth and eventual sustainability.
Good news about climate change? Evolving technology could make cleaning the air more profitable than fouling it
(02/26/2013) In the wake of the hottest and driest summer in memory throughout much of North America, and Super-storm Sandy that flooded cities and ravaged large swaths of the Mid-Atlantic coast, many now recognize that the climate change isn’t just real, but that it is already at our doorstep. As this realization continues to sink in, the political will may ripen to take more aggressive action to put a brake CO2 emissions. Already, President Obama, who had remained mostly silent on the issue during his reelection campaign, has made it clear that tackling climate change will be among his top second-term priorities. But the fact remains that even if the entire world switched magically to 100 percent solar and other non-polluting power sources tomorrow, it’s too late to roll back some of the impacts of climate change.
Rise in 1.5 degrees Celsius likely to spark massive greenhouse gas release from permafrost
(02/25/2013) While nations around the world have committed to keeping temperatures from rising 2 degrees Celsius (3.6 degrees Fahrenheit) above the pre-industrial era, new research published in Science suggests that the global climate could hit a tipping point at just 1.5 degrees Celsius (2.5 degrees Fahrenheit). Studying cave stalactites and stalagmites in Siberia, scientists found that at about 1.5 degrees Celsius the Siberian permafrost melts, potentially releasing a greenhouse gas bomb of 1,000 giga-tonnes, according to some experts.
Full Product Transparency: Cutting the Fluff Out of Sustainability - Book Review
(02/25/2013) Full Product Transparency: Cutting the Fluff Out of Sustainability, by Ramon Arratia, Sustainability Director, Interface, provides us with a clear, concise challenge.
Featured video: moving green, local energy forward in Southeast Asia
(02/25/2013) A new video highlights the work and drive of renewable energy proponents at the inaugural meeting of Southeast Asia Renewable Energy People’s Assembly (SEAREPA) in the Malaysian state of Sabah. Held last year, the meeting brought together 80 organizations from 12 countries to discuss the potential and challenges of green energy in the region. The idea of SEAREPA came about after activists in Sabah successfully defeated plans for a coal-fired power plant to be built adjacent to old-growth rainforest and one of the world's most biodiverse coral reefs.
Arctic sea ice volume plunges over a third in less than 10 years
(02/18/2013) Few places are changing as rapidly as the Arctic due to global warming. Last year, scientists were stunned when the Arctic's seasonal ice extent fell to record low that was 18 percent below the previous one set in 2007. But new research in Geophysical Research Letters finds that the volume of ice is melting away just as quickly: satellite and ocean-based measurement have found that Arctic sea ice has fallen by 36 percent in Autumn since 2003. In winter, the ice volume has dropped 9 percent.
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