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News articles on climate change
Mongabay.com news articles on climate change in blog format. Updated regularly.
New report predicts dire consequences for every U.S. region from global warming
(06/17/2009) Government officials and scientists released a 196 page report detailing the impact of global warming on the U.S. yesterday. The study, commissioned in 2007 during the Bush Administration, found that every region of the U.S. faces large-scale consequences due to climate change, including higher temperatures, increased droughts, heavier rainfall, more severe weather, water shortages, rising sea levels, ecosystem stresses, loss of biodiversity, and economic impacts.
Will jellyfish take over the world?
(06/16/2009) It could be a plot of a (bad) science-fiction film: a man-made disaster creates spawns of millions upon millions of jellyfish which rapidly take over the ocean. Humans, starving for mahi-mahi and Chilean seabass, turn to jellyfish, which becomes the new tuna (after the tuna fishery has collapsed, of course). Fish sticks become jelly-sticks, and fish-and-chips becomes jelly-and-chips. The sci-fi film could end with the ominous image of a jellyfish evolving terrestrial limbs and pulling itself onto land—readying itself for a new conquest.
Photo: guano stains helps researchers track penguins by satellite
(06/10/2009) Researchers from the British Antarctic Survey (BAS) have uncovered a novel way to locate the world’s largest penguin’s breeding sites, employing satellite imagery they seek out Emperor penguin guano, droppings which show up starkly on the otherwise unsullied white sea ice of Antarctica. Searching for the penguins themselves had proven too difficult, since the birds’ black-and-white coloring allowed them to blend in with the shadows made by the ice. The penguin droppings however are light-brown—a colors that has no other source on sea ice, besides guano.
Burning fossil fuels is disrupting nitrogen cycle
(06/04/2009) The burning of fossil fuels has disrupted the nitrogen cycle by altering that amount of nitrogen in the biosphere, according to scientists from Brown University and the University of Washington. It has long been known that fossil fuel combustion releases nitric oxides into the air—which combine with other elements to form both smog and acid rain—but until now scientists have been unsure as to the extent nitric oxide emissions have affected the natural nitrogen cycle.
Bill Clinton speaks out for rainforests in Brazil
(06/03/2009) Former US president Bill Clinton spoke out against rainforest destruction on Monday in Brazil. Headlining the Ethanol Summit 2009 in Sao Paulo, Clinton spoke of the positive role ethanol could play in lowering carbon emissions, but not when at the expense of rainforest.
Network of parks can save Africa’s birds in warmer world
(06/02/2009) As Africa’s birds are forced to move habitats due to climate change, a new study finds that the continent’s current park system will continue to protect up to 90 percent of bird species. "We looked at bird species across the whole network of protected areas in Africa and the results show that wildlife conservation areas will be essential for the future survival of many species of birds,” said Dr. Stephen Willis from Durham University. "Important Bird Areas (IBAs) will provide new habitats for birds that are forced to move as temperatures and rainfall change and food sources become scarce in the areas where they currently occur. Protected areas are a vital conservation tool to help birds adapt to climate change in the 21st century."
US responsible for 29 percent of greenhouse gas emissions over past 150 years
(05/31/2009) In the past 150 years, the United States has emitted more greenhouse gas emissions than any other nation in the world, according to a recent report by Greenpeace. In fact, US emissions account for 29 percent of the world’s total since the mid-1800s. The US emitted 328,264 million metric tons of carbon dioxide (MtCO2) in the past 150 years, which is over 3 times the amount emitted by China in the same century-and-a-half.
Rich countries buy up agricultural land in poor countries
(05/26/2009) Over two-and-half million hectares in the Democratic Republic of the Congo; half a million hectares in Tanzania; and a quarter of a million hectares in Libya: these figures represent just some of the recent international land deals where wealthy countries buy up land in poorer nations for food, and sometimes biofuel, production. The controversial trend has sparked a recent report from the International Food Policy Research Institute (IFPRI) highlighting what nations have to gain—and lose—from participating in such deals.
Green groups, corporations call for forest conservation to counter global warming
(05/20/2009) A group of leading U.S. businesses and environmental groups today formed a coalition calling for the inclusion of forest conservation in domestic cap-and-trade legislation. The pact endorses policies that would allow companies to receive credit for reducing emissions by financing activities that protect forests in tropical countries. It also calls for five percent of proceeds from the auctioning of greenhouse gas emissions allowances under a cap-and-trade system to go towards funding forest conservation projects.
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.
Study refutes criticism of polar bear listing under the Endangered Species Act
(05/20/2009) In May 2008 the Bush Administration listed the polar bear under the Endangered Species Act (ESA). The listing immediately received allegations of being politically biased and not based on sound science. However, a new paper addresses the allegations point by point and concludes that the decision to add the polar bear under the ESA was not only scientifically sound, but right.
Global warming pushes mammals north in Michigan
(05/14/2009) A new study shows that mammals in the state of Michigan are moving north because of climate change, pushing out other species on the way. Researchers studied the distribution and population of nine small mammals from live-trapping data over 30 years and notes from research museums covering the past hundred years. They utilized over 14,000 records covering the nine species.
Blue whales return to migration pattern used before commercial whaling
(05/13/2009) The blue whale may be returning to a migration route that it abandoned during commercial whaling. Researchers have discovered whales migrating from California to the coastlines of British Columbia and the Gulf of Alaska for the first time since 1965. Fifteen different cases of whales have been recorded in the north Pacific; four of the whales were individuals who had been viewed off the coast of California, as well.
Bioelectricity bests ethanol on two fronts: land use and global warming
(05/07/2009) Yesterday the Obama Administration established a Biofuels Interagency Working Group to oversee implementation of new rules and research regarding biofuels. On the group’s first day of work they would do well to look at a new study in Science Magazine comparing the efficacy of ethanol versus bioelectricity.
Prince Charles’ new online initiative for rainforests makes media splash
(05/06/2009) Releasing a video with as many species of celebrity as ants in the rainforest, while simultaneously turning to online sites such as MySpace and YouTube, appears to have worked for Prince Charles, a longtime advocate of rainforest conservation. His conservation organization’s new outreach to online users has garnered considerable coverage from the international media.
Canada and Britain abandon conventional coal
(04/29/2009) In an effort to curb climate change, both Britain and Canada have announced plans to stop building new conventional coal power plants, a move long-advocated by environmentalists. Both nations have turned their sights to the possibility of clean coal, a controversial and still unproven method that has divided environmentalists, scientists, and policy makers.
Global warming to cripple Southeast Asia economically
(04/28/2009) By the end of the century nations in Southeast Asia will face debilitating economic loss due to global warming, according to a new study from the Asian Development Bank. Analyzing Indonesia, Philippines, Thailand, and Vietnam the study found that they could suffer an annual loss of 6.7 percent ($230 billion dollars) in combined gross domestic product by 2100, more than double the global average which is estimated at a loss of 2.6 percent.
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 sizable 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.
Antarctica’s sea ice increasing due to ozone hole, but scientists predict global warming will catch-up
(04/23/2009) Increasing ice in Antarctica is not a sign that the earth is actually cooling instead of warming as some climate change-skeptics have attested. A new study finds that the growth in Antarctic ice during the last 30 years is actually due to shifting weather patterns caused by the hole in the ozone layer. The researchers predict that eventually global warming will catch up to Antarctica leading to overall melting as it has in the Arctic.
River systems worldwide are losing water due to global warming
(04/22/2009) Many rivers around the world are losing water due to global climate change, according to a new study from the American Meteorological Society's Journal of Climate. Large populations depend on some of the rivers for everything from agriculture to clean drinking resources, including the Yellow River, the Ganges, the Niger, and the Colorado, which have all shown significant declines.
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).
Colorado River unlikely to meet current water demands in warmer, drier world
(04/20/2009) Feeding the water habits of such major cities as Los Angeles, Las Vegas, and Phoenix, in addition to providing irrigation waters for the entire Southwestern United States, has stretched the Colorado River thin. The river no longer consistently reaches the sea as it once did. Now a new study warns that the Colorado River system, which has proven dependable for human use throughout the 20th Century, may soon experience shortages due to global warming.
Global warming could turn forests from sink to source of carbon emissions
(04/16/2009) Rising temperatures could reverse the role forests play in mitigating climate change, turning them into net sources of greenhouse gases, reports a new assessment by the International Union of Forest Research Organizations (IUFRO). The report, titled "Adaptation of Forests and People to Climate Change – A Global Assessment" and authored by 35 forestry scientists, examined the potential impacts of climate change across the world's major forest types as well as the capacity of forest biomes to adapt to climate shifts. Among the conclusions: a 2.5-degree-C rise in temperatures would eliminate the net carbon sequestering function of global forests. Presently forests worldwide capture about a quarter of carbon emissions.
Droughts lasting centuries in West Africa are commonplace
(04/16/2009) New evidence shows that sub-Saharan West Africa has experienced megadroughts in recent history lasting hundreds of years, far worse than the Sahel drought of the 1970s and 80s which left 100,000 dead. To uncover West Africa’s past drought patterns, researchers compiled a year-by-year record of the last 3,000 years of climate in West Africa by looking at annually-occurring layers of sediment in Lake Bosumtwi in Ghana.
Bird migrations lengthen due to global warming, threatening species
(04/15/2009) Global warming is likely to increase the length of bird migrations, some of which already extend thousands of miles. The increased distance could imperil certain species, as it would require more energy reserves than may be available. The new study, published in the Journal of Biogeography, studied the migration patterns of European Sylvia warblers from Africa to breeding grounds in Europe every spring. They discovered that climate change would likely push the breeding ranges of birds north, causing migrations to lengthen, in some cases by a total of 250 miles.
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.
Trees in trouble: massive die-offs predicted with global warming
(04/13/2009) An experimental study of pinon pines at Biosphere 2 in Arizona shows that an increase in temperature makes the species more susceptible to die-off during drought. When temperatures were increased by 4 degrees Celsius (7.2 degrees Fahrenheit), the piñon pines died 28 percent faster than trees which experienced drought-conditions at current temperatures, according to a new study published in Proceedings of the National Academy of Sciences (PNAS).
Global warming will hit corn yields, costing US over a billion dollars annually
(04/10/2009) Corn is the staple crop of the US. Its annual yield is more than twice that of any other American crop, covering an astounding 125,000 square miles. However, this behemoth crop is currently threatened. A new analysis by Environment America, shows that lower yields of corn due to global warming will cost farmers 1.4 billion every year.
Arctic ecosystem in danger as ice thins
(04/07/2009) Recent dramatic news points to both poles undergoing transformation due to climate change. This weekend an ice bridge disintegrated on the Wilkins Ice Shelf in Antarctica, leaving the whole shelf vulnerable to melting, and then yesterday new evidence was released of the impact of warming in the Arctic. Younger thinner ice has become the dominant type in the Arctic over the past five years, reports a new study led by Research Associate Charles Fowler of the Colorado Center for Astrodynamics Research. The thinner ice does not bode well for the Arctic ecosystem, as the ice is more prone to summer melting.
Black carbon linked to half of Arctic warming
(04/05/2009) Black carbon is responsible for 50 percent of the total temperature increases in the Arctic from 1890 to 2007 according to a study published in Nature Geoscience. Since 1890 the temperature in the Arctic has risen 1.9 degrees Celsius, linking black carbon to nearly an entire degree rise in Celsius or almost two degrees Fahrenheit.
Ice bridge collapses, leaving Wilkins Ice Shelf vulnerable
(04/05/2009) As though commenting on world leader's lack of progress in combating climate change at the G20 conference last week, an ice bridge connecting the Wilkins Ice Shelf to the Antarctic continent broke off over the weekend. Long expected by scientists, the break is perhaps the beginning of the Wilkins Ice Shelf completely coming loose from Antarctica.
Revolutionary new theory overturns modern meteorology with claim that forests move rain
(04/01/2009) Two Russian scientists, Victor Gorshkov and Anastassia Makarieva of the St. Petersburg Nuclear Physics, have published a revolutionary theory that turns modern meteorology on its head, positing that forests—and their capacity for condensation—are actually the main driver of winds rather than temperature. While this model has widespread implications for numerous sciences, none of them are larger than the importance of conserving forests, which are shown to be crucial to 'pumping' precipitation from one place to another. The theory explains, among other mysteries, why deforestation around coastal regions tends to lead to drying in the interior.
Plant communities changing across the globe, says scientist Sasha Wright
(03/29/2009) Having studied plant communities across three continent and within widely varied ecosystems—lowland tropics, deciduous forests, grasslands, and enclosed ecosystems on hill-tops—graduate student Sasha Wright has gained a unique understanding of shifts in plant communities worldwide as they respond to pressures from land use and global climate change. “Plant communities are certainly changing,” Wright told Mongabay.com in a March 2009 interview. “These changes are undoubtedly affected by an increased occurrence of extreme weather events, temperature fluctuations, atmospheric CO2 concentrations, human land use, and in some cases urbanization of populations.”
Greenpeace accuses Sinar Mas corporation of violence toward its protestors
(03/26/2009) In a press release issued by Greenpeace the organization states that Sinar Mas corporation security guards “brutally kicked and punched” peaceful protestors in Jakarta, Indonesia on March 19th. Greenpeace activists had chained themselves to the entrance of Sinar Mas headquarters and hung a banner labeling the corporation a 'Forest and Climate Criminal'.
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.
Norway emerges as champion of rainforest conservation
(03/19/2009) While citizens in western countries have long paid lip service to saving rainforests, Norway has quietly emerged as the largest and most important international force in tropical forest conservation. The small Scandinavian country has committed 3 billion krone ($440 million) a year to the effort, a figure vastly greater than the $100M pledged — but never fully contributed — by the United States under the Tropical Forest Conservation Act (TFCA). Norway now hopes it can help push to include forest conservation in the successor to the Kyoto Protocol by providing funding and fostering cooperation among international actors like the UN and World Bank, as well as developing countries, to fund the creation of an international architecture which makes it possible to incorporate deforestation and degradation into a post-2012 climate regime.
When it comes to global warming Americans trust scientists most, family and friends second
(03/19/2009) A new poll released today by Yale and George Mason Universities finds that Americans trust scientists most when it comes to information on climate change. Second to scientists is family and friends, which beat out environmental organizations, religious leaders, mainstream media, and President Obama.
Over 90 percent of Americans support action on climate change in midst of financial crisis
(03/19/2009) A new poll released today by Yale and George Mason Universities finds that Americans overwhelmingly—92 percent—support action to reduce global warming. However opinions vary as to how much effort should be put into reducing CO2 emissions and what actions are appropriate.
Mr. President, it is time for a speech on climate change
(03/17/2009) Now that Barack Obama has been president for nearly two months, it is time for him to give a defining speech on climate change. While Obama has spent most of his time on what the majority of Americans consider the most pressing issue—the economy—he has proven himself adept at juggling the economy with other vital issues. A fact-based speech on climate change would accomplish several goals.
Experts forecast probability of global warming tipping points
(03/16/2009) The probability of Earth's climate passing a "tipping point" that could result in large impacts within the next two centuries is greater than 50 percent, according to research published in Proceedings of the National Academy of Sciences
Rise in sea levels due to global warming could imperil New York City
(03/16/2009) A new study shows that sea levels along the United States' northeastern coast will rise nearly twice as fast during this century than previous predictions. By 2100 the waters around New York city could rise as much as 18 inches, leaving Manhattan particularly vulnerable to flooding from hurricanes and winter storm surges.
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.
New greenhouse gas ‘4,800 times more potent’ than carbon
(03/12/2009) Scientists from MIT and Scripps Institution of Oceanography have announced the discovery of an exceptionally potent new greenhouse gas. Sulfuryl fluoride is an up-and-coming fumigant against insects, but scientists have discovered that if the new gas becomes widely used it could contribute significantly to climate change.
More Americans than ever believe global warming is ‘exaggerated’ by media
(03/12/2009) While a majority of Americans believe the media is either correct or underestimating the threat of climate change, more than ever believe the threat is exaggerated.
Seven new species of deep sea coral discovered
(03/09/2009) In the depths of the Papahānaumokuākea Marine National Monument, which surrounds ten Hawaiian islands, scientists discovered seven new species of bamboo coral. Supported by the National Ocean and Atmospheric Administration (NOAA), the discoveries are even more surprising in that six of the seven species may represent entirely new genus of coral.
Clean energy investment moving too slowly to avoid irreversible climate change
(03/04/2009) Stalled clean energy investment due to the current recession makes severe climate change more likely, according to a new report by analysts with New Energy Finance (NEF).
Climate change could devastate lizards in the tropics
(03/04/2009) With help from data collected thirty years ago, scientists have discovered that tropical lizards may be particularly sensitive to a warming world. Researchers found that lizards in the tropics are more sensitive to higher temperatures than their relatives in cooler, yet more variable climates. "The least heat-tolerant lizards in the world are found at the lowest latitudes, in the tropical forests. I find that amazing," said Raymond Huey, lead author of a paper appearing in the March 4 Proceedings of the Royal Society B.
Aquatic animals emit powerful greenhouse gas
(03/02/2009) A number of water-dwelling species emit the greenhouse gas nitrous oxide, researchers announced today in the journal Proceedings of the National Academy of Sciences . Although nitrous oxide is low in concentration globally, it is considered the fourth largest contributor to climate change. This is due to its potency: in a hundred year period nitrous oxide by weight packs 310 times more punch as a greenhouse gas than carbon dioxide.
Largest US protest on climate change today
(03/02/2009) At 1 PM EST activists from across the US plan to engage in civil disobedience at Capitol Power Plant in Washington DC. Organizers from 90 different groups estimate that more than 2,500 people will be joining in the protests making it the largest US protest on climate change to date. Owned by congress, Capital Power Plant is seen by activists as a longtime symbol of the US government’s consistent support for the use of coal, the leading source of CO2 emissions in the US.
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