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News articles on remote sensing

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Mongabay.com news articles on remote sensing in blog format. Updated regularly.

Google – the new eye in the sky for protecting forests?

(11/22/2009) Google looks set to play a part in a called-for "new environmental world order" by satellite-monitoring the rates of deforestation of tropical rainforests and pinpointing illegal logging and land misuse, Google’s Northern and Central Europe head Philipp Schindler has revealed. Schindler made the announcement in London on November 19 at a meeting at St James's Palace hosted by the Prince's Rainforests Project about a new climate change reduction mechanism, REDD (Reduced Emissions from Deforestation and Degradation). An inter-governmental report produced this month by an Informal Working Group (IWG) for Interim Funding of REDD has outlined an initiative to save the CO2 equivalent of the annual emissions of the US over five years by rewarding developing countries for reducing deforestation, with payments on a performance basis.


Google partners with Amazon tribe

(10/29/2009) The story of an indigenous Amazon tribe that has embraced technology in its fight to protect its homeland and culture is now highlighted as a layer in Google Earth.


Emissions from cerrado destruction in Brazil equal to emissions from Amazon deforestation

(09/15/2009) Damage to Brazil's vast cerrado grassland results in greenhouse gas emissions equivalent to those produced by destruction of the Amazon rainforest, said Carlos Minc, the country's Environment Minister.


Brazil to step up efforts to save the cerrado grassland

(09/11/2009) Brazil will try to reduce deforestation of the cerrado, a wooded grassland ecosystem in Brazil that is being destroyed twice as fast as the Amazon rainforest, according to the country's Environment Minister Carlos Minc.


Concerns over deforestation may drive new approach to cattle ranching in the Amazon

(09/08/2009) While you're browsing the mall for running shoes, the Amazon rainforest is probably the farthest thing from your mind. Perhaps it shouldn't be. The globalization of commodity supply chains has created links between consumer products and distant ecosystems like the Amazon. Shoes sold in downtown Manhattan may have been assembled in Vietnam using leather supplied from a Brazilian processor that subcontracted to a rancher in the Amazon. But while demand for these products is currently driving environmental degradation, this connection may also hold the key to slowing the destruction of Earth's largest rainforest.


20% of land deforested in the Brazilian Amazon is regrowing forest

(09/06/2009) At least 20 percent land deforested in the Brazilian Amazon is regrowing forest, reports Brazil's National Institute for Space Research (INPE).


Is El Niño back?

(07/28/2009) Ocean temperatures in the central and eastern Pacific have shifted into El Niño conditions, increasing the likelihood of anomalously dry conditions in Southeast Asia and other unusual weather patterns, according to the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center.


NASA photos show severe flooding in the Amazon

(07/22/2009) Photos released by NASA highlight last month's severe flooding of the Amazon River near the Brazilian city of Manaus.


Global ocean temperatures at warmest level since 1880

(07/21/2009) Global ocean temperatures rose to the warmest on record, according to data released last week by the National Oceanic and Atmospheric Administration (NOAA). The combined average global land and ocean surface temperature for June was second-warmest since global recording-keeping began in 1880. NOAA also reported a return of el Niño, raising the prospect of dryness—and risk of forest fires—in Southeast Asia.


Brazil's development bank to require beef-tracking system to avoid illegal Amazon deforestation

(07/01/2009) Responding to allegations that major Brazilian cattle producers are responsible for illegal forest clearing in the Amazon, Brazil's development bank BNDES will soon require processors to trace the origin of beef back to the ranch where it was produced in order to qualify for loans, reports Brazil's Agencia Estado. The traceability program aims to ensure that cattle products do not come from illegally deforested land.


NASA satellite photos reveal Yellowstone's recovery from fires

(06/30/2009) Satellite images released by NASA show a gradual recovery of forests affected by massive fires during the summer of 1988 in Yellowstone National Park. Fires during that hot and dry summer burned nearly 36 percent of the park — some 793,000 of the park's 2,221,800 acres.


NASA images show huge drop in Amazon fires in 2008

(06/30/2009) New NASA research shows a sharp decline in the amount of smoke over the Amazon during the 2008 burning season, coinciding with a drop in deforestation reported last week by Carlos Minc, Brazil's Environment Minister. Analyzing the aerosol concentrations over the Amazon each September from the past four burning seasons using the Ozone Monitoring Instrument on NASA's Aura satellite, atmospheric scientist Omar Torres of Hampton University and several colleagues found a dramatic decline in airborne particular matter in 2008, indicating reduced incidence of fire in the region. Fire in the Amazon is primarily used by humans for land-clearing to establish cattle pasture, which now accounts for the vast majority of land-use change in the world's largest rainforest.


Rainforest discovered via Google Earth to be protected

(06/29/2009) Mozambique has agreed to protect a tract of highland forest discovered by scientists using Google Earth, reports The Guardian.


Brazilian cattle giant declares moratorium on Amazon deforestation

(06/25/2009) Marfrig, the world's fourth largest beef trader, will no longer buy cattle raised in newly deforested areas within the Brazilian Amazon, reports Greenpeace. The announcement is a direct response to Greenpeace's Slaughtering the Amazon report, which linked illegal Amazon forest clearing to the cattle producers that supply raw materials to some of the world's most prominent consumer products companies. Marfrig was one several cattle firms named in the investigative report.


NASA photos reveal destruction of 99% of rainforest park in Rwanda

(06/09/2009) Satellite images released by NASA show nearly complete destruction of Rwanda's Gishwati Forest between 1986 and 2001. Deforestation of the forest reserve is largely the result of subsistence harvesting and cultivation by refugees in the aftermath of the country's 1994 genocide. Overall only 600 hectares of Gishwati's original 100,000 hectares of forest remain, a loss of 99.4 percent.


Destruction of Brazil's most imperiled rainforest continues

(05/31/2009) More than 100,000 hectares of Brazil's most threatened ecosystem was cleared between 2005 and 2008, reports a study by the Fundação SOS Mata Atlãntica and the National Institute for Space Research (INPE). The "Atlas of Mata Atlântica Remnants", released May 26, assessed the extent of the Mata Atlântica (Atlantic Forest) across 10 of the 17 states where the coastal rainforest occurs. It found that an 102,938 hectares were destroyed during the three year period. The annual loss of 34,121 hectares per year was 2.4 percent lower than the 34,965 ha recorded from the 2000-2005 period.


How satellites are used in conservation

(04/13/2009) In October 2008 scientists with the Royal Botanical Garden at Kew discovered a host of previously unknown species in a remote highland forest in Mozambique. The find was no accident: three years earlier, conservationist Julian Bayliss identified the site—Mount Mabu—using Google Earth, a tool that’s rapidly becoming a critical part of conservation efforts around the world. As the discovery in Mozambique suggests, remote sensing is being used for a bewildering array of applications, from monitoring sea ice to detecting deforestation to tracking wildlife. The number of uses grows as the technology matures and becomes more widely available. Google Earth may represent a critical point, bringing the power of remote sensing to the masses and allowing anyone with an Internet connection to attach data to a geographic representation of Earth.


Development of Google Earth a watershed moment for the environment

(03/31/2009) Satellites have long been used to detect and monitor environmental change, but capabilities have vastly improved since the early 1970s when Landsat images were first revealed to the public. Today Google Earth has democratized the availability of satellite imagery, putting high resolution images of the planet within reach of anyone with access to the Internet. In the process, Google Earth has emerged as potent tool for conservation, allowing scientists, activists, and even the general public to create compelling presentations that reach and engage the masses. One of the more prolific developers of Google Earth conservation applications is David Tryse. Neither a scientist nor a formal conservationist, Tryse's concern for the welfare of the planet led him develop a KML for the Zoological Society of London's EDGE of Existence program, an initiative to promote awareness of and generating conservation funding for 100 of the world's rarest species. The KML allows people to surf the planet to see photos of endangered species, information about their habitat, and the threats they face. Tryse has since developed a deforestation tracking application, a KML that highlights hydroelectric threats to Borneo’s rivers, and oil spills and is working on a new tool that will make it even easier for people to create visualizations on Google Earth. Tryse believes the development of Google Earth is a watershed moment for conservation and the environmental movement.


Deforestation maps for Sumatra now available on Google Earth

(03/31/2009) Despite many years of research in conservation biology, precise maps of tropical deforestation that document the global spatial extent of tropical forests destruction are generally not available outside of the scientific community, says David Gaveau a researcher from Durrell Institute of Conservation and Ecology (DICE) points out. For nearly seven years, Gaveau has been documenting forest destruction on the entire island of Sumatra since early 1970s using satellite technology, and he has found the way to make his full-resolution maps and scientific results public using Google Earth.


Advancements in satellite technology will help scientists and policy makers map and monitor forest carbon

(03/29/2009) Given that deforestation accounts for nearly one fifth of anthropogenic greenhouse gas emissions, reducing forest clearing and degradation is increasingly seen as an critical component to any framework addressing climate change. By some estimates, a mechanism that compensates countries for reducing emissions from deforestation and forest degradation (REDD) could funnel billions of dollars per year towards forest conservation. However the effectiveness of such a mechanism will hinge on the quality of data. Effective mapping and monitoring of forest carbon stores is absolutely key to any mechanism that compensates countries for reducing emissions from deforestation and forest degradation.


37,000 sq km of Amazon rainforest destroyed or damaged in 2008

(03/19/2009) Logging and fires damaged nearly 25,000 square kilometers (9,650 square miles) of Amazon rainforest in the August 2007-July 2008 period, an increase of 67 percent over the prior year period, according to a new mapping system developed by Brazil's National Institute for Space Research (INPE). The damage comes on top of the nearly 12,000 sq km (4,600 sq mi) of rainforest that was cleared during the year.


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.


Google Earth now allows ocean exploration, tracking of sharks

(02/05/2009) Google Earth now allows users to dive beneath the surface of the world's oceans to see coral reefs, trenches, and other marine wonders. The new version, Google Earth 5, includes layers showing locations of shipwrecks and surf spots; routes for ocean expeditions; the movements of GPS-tracked sea animals; and information (including videos and images) about the ocean environment from sources including National Geographic, the Cousteau Society, the International Union for Conservation of Nature (IUCN), the Monterey Bay Aquarium, and the National Oceanic and Atmospheric Administration (NOAA).


Camera trap photos reveal bushmeat hunting threat to jaguars in Ecuador

(01/27/2009) Jaguars are the largest cats of the Americas and third largest cats in the world. The primary rainforest in the Amazon region of Ecuador is among their last remaining strongholds. Jaguars are listed as “vulnerable” in Ecuador, and Santiago Espinosa, Wildlife Conservation Society (WCS) fellow, PhD candidate from University of Florida/Gainesville, and WWF fellow, wants to know just how many jaguars are left in his home country. He is developing strategies to protect them by determining their numbers and the factors that threaten them through a unique method of non-invasive photography.


New global temperature record expected in the next 1-2 years

(01/27/2009) 2008 was the coolest year since 2000 but still ranks in the top ten warmest years since record-keeping began in 1880, reported NASA last week.


Photos: Google Earth used to find new species

(12/22/2008) Scientists have used Google Earth to find a previously unknown trove of biological diversity in Mozambique, reports the Royal Botanic Gardens in Kew. Scouring satellite images via Google Earth for potential conservation sites at elevations of 1600 meters or more, Julian Bayliss a locally-based conservationist, in 2005 spotted a 7,000-hectare tract of forest on Mount Mabu. The scientifically unexplored forest had previously only been known to villagers. Subsequent expeditions in October and November this year turned up hundreds of species of plants and animals, including some that are new to science.


Drought and deforestation in southeast Asia linked to climate change

(12/09/2008) Researchers have linked drought and deforestation in southeast Asia to climate change. Analyzing six years of climate and fire data from satellites, Guido van der Werf and colleagues report that burning of rainforests and peatlands in Indonesia, Malaysia, and Papua New Guinea released an average of 128 million tons of carbon (470 million tons of carbon dioxide - CO2) per year between 2000 and 2006. Fire emissions showed highly variability during the period, but were greatest in dry years, such as those that occur during El Niño events. Borneo was the largest source of fire emissions during the period, averaging 74 million tons per year, followed by Sumatra, which showed a doubling in emissions between 2000 and 2006.


Palm oil companies propose satellite monitoring of their plantations to ensure sustainability

(11/05/2008) The Roundtable on Sustainable Palm Oil (RSPO) is considering a proposal to use satellite imagery to enforce criteria that high value conservation areas are not converted to oil palm plantations, reports Ian Wood of the Telegraph. The move would boost RSPO's credibility at a time when the industry-lead sustainability initiative is under fire from environmentalists who say its performance to date suggests it is merely an exercise in greenwashing.


Ozone hole is second-largest on record in 2008

(10/30/2008) The Antarctic ozone hole reached its second-largest size on record in 2008, reports NASA.


Brazil to have high resolution imagery for 86% of the Amazon by year end

(10/15/2008) Brazil will have high resolution imagery for 86 percent of its Amazon territory by the end of the year, according to Reuters. The images will help the country protect the Amazon rainforest and prosecute alleged environmental crimes, including illegal logging and agricultural expansion.


Rare Amur leopard photographed for the first time with kill

(10/08/2008) With just over thirty individuals left, every photograph of an Amur leopard in the wild is news. But recently released photos are the first to show an Amur leopard at a livestock kill, making them even more important. According to an article from Wildlife Alliance, on September 8th a staff member of the Gamov sika deer farm contacted Eugene Stoma with news about an Amur leopard that had entered the farm and killed three deer. Stoma is the leader of an anti-poaching squad that protects the remaining leopards. After locating the leopard’s kill, Stoma and his team placed camera traps around the kill, hoping the leopard would return. The leopard did return yielding three photos from various angles.


Arctic sea ice falls to second lowest on record

(09/16/2008) Arctic sea ice retreated to the second lowest level on record but remains about 9 percent above the low set last September, reports the NASA and the National Snow and Ice Data Center in Boulder, Colorado.


NASA: Sea ice melt opens the Northwest and Northeast Passage

(09/09/2008) An image released by NASA shows that Arctic sea ice has retreated to the point where both the Northwest Passage around North America and the Northern Sea Route around Russia are open simultaneously. The occurrence marks the first time on record that both passages have been open.


Independent of climate, forest cover in southern Amazon may fall to 20% by 2016

(09/03/2008) Forest cover in the "Arc of Deforestation" of southern Amazonia will decline to around 20 percent 2016 due to continued logging and conversion of forests for cattle pasture and soy farms, report researchers writing in the journal Environmental Conservation. Analyzing high resolution satellite data from 1984 through 2004 for the Alta Floresta region in northern Mato Grosso, Fernanda Michalski, Carlos Peres and Iain Lake of the University of East Anglia found that forest cover declined from from 91.1 percent to 41.7 percent between 1984 and 2004. They note that while the deforestation rate has slowed to around 2 percent per year since peaking at more than 8 percent annually in late 1980s to mid-1990s, renewed expansion of road networks will enable loggers to increasingly exploit remaining forests, leading to degradation and likely eventual conversion for agricultural use. Overall Michalski and colleagues forecast that forest cover in Alta Floresta will fall to 21 percent by 2016, a decline of 77 percent since 1984.


Amazon deforestation jumps 69% in 2008

(08/31/2008) Deforestation in the Brazilian Amazon increased 69 percent in the past 12 months as high commodity prices have driven forest conversion for ranches and cropland, according to preliminary figures released by Brazil's National Institute for Space Research (INPE). The increase comes after three consecutive years of declining deforestation in Brazil.


Haze risk returns as fires increase in Indonesia

(08/26/2008) The number of forest fires burning in Indonesia is increasing, raising concerns for the potential return of choking haze to the region.


Google Earth reveals cattle have a built-in compass

(08/25/2008) Cattle, along with grazing deer, tend to align themselves with the Earth's magnetic field lines, in a north-south direction, report researchers writing in the early online edition of the journal Proceedings of the National Academy of Sciences (PNAS). The finding suggests that cows seem to have a built-in magnetic compass.


NASA images reveal two massive glaciers breaking apart in Greenland

(08/22/2008) Two of Greenland's largest glaciers are breaking up report researchers monitoring NASA satellite images.


Smoke from Amazon fires reduces local rainfall

(08/14/2008) Smoke released by fires set to clear the Amazon rainforest inhibit the formation of clouds, thereby reducing rainfall, report researchers writing in the journal Science. The study provides clues on how aerosols from human activity influence cloud cover and ultimately affect climate.


NASA study shows global warming will diminish rainfall in East Africa, worsening hunger

(08/06/2008) A new NASA-backed study has found a link between a warming Indian Ocean and reduced rainfall in eastern and southern Africa. The results suggest that rising sea temperatures could exacerbate food problems in some of the continent's most famine-prone regions.


New mapping system shows how detailed climate changes will affect species

(08/06/2008) A new computer simulation from the Nature Conservancy shows greater detail than ever before on how climate change will affect the world's biodiversity, according to an article in New Scientist. In worst case scenarios—using the example of Bengal tigers in Sundarbans mangrove forest—the article's author, Peter Aldhous, writes that some species will be forced into a "condemned cell", literally having no-where to go while their region becomes inhabitable.


Often overlooked, small wild cats are important and in trouble

(08/05/2008) While often over-shadowed by their larger and better-known relatives like lions, tigers, leopards, and jaguars, small cats are important indicators of the health of an ecosystem, says a leading small cat expert who uses camera traps extensively to document and monitor mammals in the wild. Dr Jim Sanderson, a scientist with the Small Cat Conservation Alliance and Conservation International, is working to save some of the world's rarest cats, including the Andean cat and Guigna of South America and the bay, flat-headed, and marbled cats of Southeast Asia. In the process Sanderson has captured on film some of the planet's least seen animals, including some species that have never before been photographed. He has also found that despite widespread criticism, some corporate entities are effectively protecting remote wilderness areas.


Developing the world's most sophisticated program for mapping endangered species

(08/04/2008) It was big news in April when a comprehensive map of Madagascar's rich and unique biodiversity was unveiled. The project managed to map ranges of 2,315 species across an island larger than France. Such detailed mapping could not have happened without the aid of Steve Phillips. A researcher at AT&T, Phillips developed the software that made such detailed and expansive mapping possible.


Amazon deforestation forecast for 2008 revised downward

(07/17/2008) Deforestation in the Brazilian Amazon fell sharply in the month of May (1,096 square kilometers) compared to May a year-ago (1,222 square kilometers), according to preliminary satellite data announced by the country's environment minister on Tuesday. Brazilian Environment Minister Carlos Minc said a preliminary analysis by the government's National Space Research Institute (INPE) showed 1,096 square kilometers (423 square miles) of rain forest were cut down in May, down from 1,123 square kilometers (434 square miles) in April.


First carbon map of America released by NASA

(07/15/2008) For the first time, one can have a whole view of America's carbon output: region by region, city by city. The Vulcan Project has undertaken a holistic inventory—including electricity, heat, transportation, and industry—of local carbon emissions across the nation to create the first carbon map of America. Texas leads the fifty states, and the county of Harris, Texas (encompassing Houston) records the nation's largest emissions by county. Although Texas is second in population after California, its massive industry puts it over the top.


Rainforest destruction becomes industry-driven, concentrated geographically

(06/30/2008) New analysis of global deforestation reveals that the bulk of tropical forest loss is occurring in a small number of countries. The research — published in the journal Proceedings of the National Academy of Sciences (PNAS) — shows that Brazil accounts for nearly half of global deforestation, nearly four times that of the next highest country, Indonesia, which makes up about an eighth of worldwide forest clearing.


New Google Earth layer offers insight on global deforestation

(06/15/2008) A new Google Earth KML file presents a geographical account of global deforestation.


Indigenous peoples of Congo map their forests with GPS in an effort to save them

(04/13/2008) This week over five hundred villagers in the Democratic Republic of Congo's rainforest will employ GPS technology to map their forests in an effort to preserve their territory from logging companies.


Fire monitoring by satellite becomes key conservation tool

(03/26/2008) Remote sensing is increasingly used as a tool for conservation management. Beyond traditional satellite imagery popularized by Google Earth, new sensing applications are allowing researchers located anywhere in the world to track fires, illegal logging and mining, and deforestation in some of Earth's most isolated regions using a computer or handheld device. The Fire Alert System is one example of an application that is harnessing the power of satellites to deliver key data to conservation managers. Developed by Madagascar's ministry of Environment, the International Resources Group, conservation International using data from the University of Maryland and NASA, the Fire Alert System enables near real-time monitoring of fires anywhere on the island of Madagascar, a hotspot of biological diversity. The system, which sends subscribers regular email alerts on newly-detected burning, will eventually be expanded to include all the world's protected areas, allowing managers to detect not only fires but potentially related activities like road building, logging, and even hunting.


Satellite could help reindeer in the Arctic

(03/17/2008) Researchers have used satellite data to detect Arctic conditions that cause mass starvation of hoofed animals depended on by native peoples. Some 20,000 musk oxen died on Canada's far-northern Banks Island because of such conditions during the winter several years ago. Yet, their deaths went unnoticed until the next spring. The new satellite-detection method could provide an early warning to native people, giving them a realistic chance of getting food to herds to prevent mass starvation.



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