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News articles on rivers

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Mongabay.com news articles on rivers in blog format. Updated regularly.

China's wetlands shrinking due to global warming

(07/16/2007) Wetlands on China's Qinghai-Tibet plateau have shrunk by more than 10 percent over the past 40 years, posing a threat to agriculture and river flows, according to scientists from the Chinese Academy of Sciences. Wetlands at the Yangtze's origin contracted 29 percent over the same period.


$11B Amazon rainforest dam gets initial approval

(07/10/2007) The Brazilian government has given preliminary go-ahead on a massive Amazon dam project that environmentalists and scientists say could be a potential ecological disaster.


NASA maps newly proposed source of the Amazon River

(07/03/2007) NASA released a map showing the newly proposed source of the Amazon River, a change that would make it the longest river in the world. Last month Brazilian researchers proposed Mount Mismi, a snow-covered mountain in southern Peru as the source of the Amazon River. Previously, the generally accepted source was in northern Peru. If the revision holds, the length of the Amazon would exceed that of the Nile by roughly 60 miles (105 km). However the claim is likely to be contested.


Man-eating piranha are actually cowards

(07/01/2007) Despite their reputations as aggressive blood-thirsty carnivores, piranha schooling behvaior is a defensive measure to protect against predators rather than an offensive hunting maneuver, reports new research presented at the Royal Society's summer science exhibition in London. Piranhas face many predators in their Amazon habitat, including caiman, freshwater dolphins, and giant fish like the pirarucu or arapaima.


Set back for AES on rainforest dam project in Panama

(06/26/2007) The World Heritage Committee moved to assess threats to La Amistad International Park, a World Heritage site shared by Panama and Costa Rica, from AES Corporation's planned construction of four hydroelectric dams on the park's border. The decision was based on an April 2007 petition from the Center for Biological Diversity and more than 30 other organizations in the United States, Panama, and Costa Rica.


Is the Amazon longer than the Nile?

(06/18/2007) Brazilian researchers claim they have evidence proving that the Amazon is the longest river in the world, some 65 miles (105 km) longer than the Nile, reports BBC News.


Dam protest leaves four dead in Sudan

(06/14/2007) Four people were killed and at least 10 wounded when police dispersed a group of protesters in Sudan, reports Sapa-AFP. The domestrators had gathered to protest a dam in the Kijbar region. Local press said that police fired on group as they tried to attack construction equipment being used to build the dam.


Brazil debates $11B Amazon dam project

(06/10/2007) The eternal tension between Brazil's need for economic growth and the damage that can cause to the environment are nowhere more visible than here in this corner of the western Amazon. Now a proposal to build an $11 billion hydroelectric project here on the Madeira River, which may have the world's most diverse fish stocks, has set off a new controversy.


Amazon tribe blocks major Brazilian highway

(06/08/2007) Indigenous Amazonians have blocked a major highway in the Brazilian state of Mato Grosso to protest a series of hydroelectric dams planned on the Xingu river, one of the Amazon's largest tributaries, according to Brazzil Mag and Survival International.


Rare softshell turtle rediscovered in Cambodia

(05/16/2007) Scientists from conservation International have successfully hatched a clutch of eggs from one of the world's most endangered turtle species.


'Green' dams could reduce GHG emissions

(05/14/2007) Scientists in Brazil have developed a way to reduce greenhouse emissions from large hydro-electric dams, according to a report from BBC News. The technology, developed by researchers at Brazil's National Space Research Institute (INPE), extracts methane from reservoir water to supplement energy produced by the dam turbines.


China to spend $2.1B to protect wetlands

(04/25/2007) China says it will spend more than $2.1 billion (16.5 billion yuan) to protect and restore its highly endangered wetlands over the next five years.


Damage to Yangtze 'irreversible' says China

(04/16/2007) Pollution, dams and excessive boat traffic have caused an 'largely irreversible' decline in the aquatic ecology of the Yangtze says a report issued by China's official State Environmental Protection Administration (SEPA).


Man swims entire length of Amazon river

(04/09/2007) Slovenian marathon swimmer Martin Strel became the first person to swim the entire length of the Amazon River Saturday when he arrived in Belem, Brazil. Strel was immediately taken to the hospital in critical condition but is now recovering in a local hotel.


Herring fish restored to Bronx River in New York City

(04/05/2007) Building on last year's first-ever successful stocking of river herring in the Bronx River, an estimated 400 additional fish were released today in an ongoing effort to establish a breeding population of these native fish in one of the nation's most urbanized waterways. The release, which took place on the grounds of the Bronx Zoo, is part of a partnership among a diverse group of officials, biologists and citizen's groups to restore the Bronx River, the only remaining fresh water river within New York City's borders.


Global warming could hurt salmon fisheries in Pacific Northwest

(04/02/2007) Global warming could cause Chinook salmon populations in Washington state to decline 20-40 percent by 2050 according to a new study published in the online early edition of PNAS. The researchers urge policymakers to focus on restoration of lower elevation habitats in order to reduce the expected impact of climate change on salmon populations.


The news of extinction: western media's response to the demise of the Baiji

(04/01/2007) The news came and went with an alacrity that I found alarming, almost jolting. I waited for weeks, faithfully; I could not believe that the initial announcement would be followed by nothing but silence on the issue, no rationalizations, no opinions, no discussions, no outpourings of grief. Just silence.


China will continue search for 'extinct' baiji river dolphin

(12/18/2006) Chinese state media reports that scientists will continue to search for the baiji dolphin even after a 38-day search failed to produce any evidence of its existence in the Yangtze River.


Goodbye to the Baiji

(12/14/2006) After a short illness spurred by pollution, overfishing, boat traffic, and obstructions like dams, the Baiji was declared 'functionally extinct' last night. As a species, the river dolphin found only in China's Yangtze River was 20 million years. The Baiji is survived by other river dolphins, all themselves threatened, in the Ganges, Indus, Amazon, Orinoco, and La Plata rivers. No memorial service will be held.


African river basins are drying up says NASA

(12/13/2006) New satellite data from NASA show that the Mississippi and Colorado River basins are storing more water over the past five years, while the Congo, Zambezi and Nile basins are drying.


Chinese river dolphin nearly extinct says official

(12/03/2006) Xinhua, China's state news agency, reported that a 26-day search for the Baiji, or the Yangtze dolphin, found no dolphins. The Baiji is highly threatened by pollution, overfishing, and obstructions like dams.


Volcanic eruptions in Iceland shrunk Nile River

(11/21/2006) A series of volcanic eruptions in Iceland in the 18th century dramatically impacted the mighty Nile River according to a new study published in Geophysical Research Letters. The research, partly funded by NASA, shows that volcanic eruptions in high latitudes can greatly alter global climate and distant river flows. The scientists found that Iceland's Laki volcanic event, a series of roughly ten eruptions from June 1783 through February 1784, altered atmospheric circulations across much of the Northern Hemisphere, reducing rainfall over much of the Nile River watershed and producing record low river levels. The researchers said that the Laki event had a significant impact on climate because it released large amounts of aerosol-forming sulfur dioxide into the atmosphere. The aerosols, which cool climate by reflecting incoming sunlight into space, may have reduced the average temperature over Northern Hemisphere land masses by as much as 3 degrees Celsius in the summer of 1783, according to computer models used in the study.


Amazon river flowed into the Pacific millions of years ago

(10/24/2006) A new study adds further evidence the theory that the world's largest river, the Amazon, once flowed in the opposite direction, emptying into the Pacific Ocean. Researchers at the University of North Carolina at Chapel Hill (UNC) discovered "ancient mineral grains" in the central Amazon that could only have originated in now-eroded mountains that once existed in the central and eastern South America, not the more recently formed Andes in the west


Fish decline has ecological impact in tropical river

(08/14/2006) Dramatic population reductions of a single fish species in a South American river could degrade ecosystem function in an entire river system, according to an article in the Aug. 11 issue of the journal Science.


Amazon Port Pits Farmers Vs. Rainforest

(07/18/2006) When U.S. grain giant Cargill opened a $20 million port in this sleepy Amazon River city three years ago, it expected to cash in on the rising global demand for soybeans that had become Brazil's richest agricultural export.


What do bikini models and Merrill Lynch have to do with deforestation?

(05/14/2006) Last week a bikini-clad woman made international news wires when she disrupted a group photo shoot at a business summit in Vienna, Austria. The woman -- identified as Evangelina Carrozo, a beauty queen from Gualeguaychu, Argentina -- protesting the construction of two wood pulp plants under construction in Uruguay on the border with Argentina. The $1.8 billion project is the largest investment deal in the history of Uruguay, but has strained relations between Uruguay and Argentina, which says the plant may pollute downstream areas. Earlier this month, Argentina announced it had filed a claim against its neighbor before the International Court of Justice at the Hague, arguing that Uruguay failed to conduct a thorough environmental impact study.


The Amazon: Fisherman's paradise

(05/02/2006) The following is an update from The Wilderness Classroom's expedition to the Peruvian rainforest. This morning, I joined Warren and our new guide, Ramon, for a paddle in search of animals. At Lake El Dorado, you do not have to go far to find animals. It seemed like everywhere we looked we found something new to look at.


Flooded forest habitat in the Amazon rainforest

(05/02/2006) The following is an update from The Wilderness Classroom's expedition to the Peruvian rainforest. We are near the end of our journey through the Pacaya Samiria National Reserve, and we have experienced so many new sights and sounds that it is hard to recount all of them in our updates. Each week we've focused on a different topic to pass on the information that we are gathering for you. This week we will focus on habitat.


Fish Flow with the Floods in the Amazon

(04/12/2006) The entire life of the Tambaqui, also called a Pacu, follows the annual rise and fall of the floodwaters. The young are born in the river channel and are carried by the high water into the floodplain, where they live in the floating meadows and eat grass seeds. The fish use their keen senses of smell and vision to find their favorite fruits and seeds in the forest. Tambaqui are unique in their love for rubber tree seeds. They crush the hard seed coating with large molar-like teeth and swallow the seed whole. This does not destroy the seed, in fact, the process is a necessary step in germination, or preparing the seed to sprout. Later, the seed will grow into a rubber tree.


Rivers are the highways of the Amazon

(04/11/2006) Rivers are the highways of the Amazon. Instead of driving cars and trucks, people use use boats to travel from place to place. Launchas are large boats powered by strong engines that travel up and down all the major rivers in the Amazon Basin. We have spent the last two day nights and two night on a launcha that is traveling up the Amazon River at about 10 miles an hour.


Exploring the Flooded Streets of Iquitos, Peru

(04/09/2006) Belen is on the edge of the large city of Iquitos. Belen is unique because much of the city is covered in water for most of the year. From January to May the streets, soccer fields, and gardens are underwater. Many of the houses are built on rafts that float up and down as the river rises and falls. Other houses are built on stilts so that the water does not cover the house when the water rises. The floating city was full of life: people paddling canoes, children swimming and laughing, people going about their daily lives in houses floating on the Amazon River.


Brazil to flood Amazon rainforest for hydroelectric power

(03/17/2006) Brazil's plans to dam two rivers in the Amazon basin to generate power threaten a treasure trove of animals and plants in a region with one of the world'apos;apos;s richest arrays of wildlife, environmentalists say.


Climate change increases California flood, drought risk

(02/07/2006) Climate change may increase the risk of winter floods and summer water shortages--even within the same year--says new research by scientists Lawrence Livermore National Laboratory. The study, which appeared in the January 27 edition of the journal Geophysical Research Letters shows that global warming is likely to change river flows in ways that may result in both increased flood risk and water shortages.


Scandinavians mix sea and river water to generate electricity

(12/19/2005) Two Scandinavian groups have invented devices that generate electricity by mixing sea and river water. The technologies work based on the difference in salt concentration between ocean water and freshwater.


Amazon drought continues, worst on record

(12/11/2005) The worst drought ever recorded in the Amazon continues according to an update from The New York Times. The drought has turned rivers into grassy mud flats, killed tens of millions of fish, stranded hundreds of communities, and brought disease and economic despair to the region.


Amazon at record low -- communities isolated, commerce stalled

(10/11/2005) The Amazon River in Peru and parts of Brazil is at its lowest level in 30 years of record keeping. While variable water levels are characteristic of the Amazon river ecosystem, the increasingly extreme fluctuations are of great concern. Low water levels are wreaking havoc on the shipping industry in the region. In Iquitos, a city in the heart of the Peruvian Amazon which is only accessible by plane or boat, ships and barges are having difficulty navigating the river, resulting in serious shipping delays. Local officials in Peru are blaming deforestation of the upper reaches of the Amazon in the Andes for the fall in river levels, although it is likely that larger forces are at least equally important. Warmer ocean surface temperatures in the Pacific and low sunspot activity is also affecting weather in the region, while warming in the north Atlantic -- which has helped trigger an unusually strong and destructive hurricane season -- may be preventing the formation of rain clouds over the Amazon Basin.


Extreme drought drops Amazon river to record low levels

(10/07/2005) The Amazon River in Peru and parts of Brazil is at its lowest level in 30 years of record keeping. While variable water levels are characteristic of the Amazon river ecosystem, the increasingly extreme fluctuations are of great concern. Low water levels are wreaking havoc on the shipping industry in the region. In Iquitos, a city in the heart of the Peruvian Amazon which is only accessible by plane or boat, ships and barges are having difficulty navigating the river, resulting in serious shipping delays. Local officials in Peru are blaming deforestation of the upper reaches of the Amazon in the Andes for the fall in river levels, although it is likely that larger forces are at least equally important. Warmer ocean surface temperatures in the Pacific and low sunspot activity is also affecting weather in the region. Brazilian meteorologists have discounted the theory that the severe hurricane season off the US Gulf coast has impacted the availability of moisture in the Amazon.


Weight of flooded Amazon river causes Earth to sink 3 inches

(10/05/2005) As the Amazon River floods every year, a sizeable portion of South America sinks several inches because of the extra weight -- and then rises again as the waters recede, a study has found. This annual rise and fall of earth's crust is the largest ever detected, and it may one day help scientists tally the total amount of water on Earth.


Amazon river at record low levels; deforestation blamed

(09/30/2005) The Amazon River in Peru is at its lowest level in 30 years of record keeping according to a report in Peruvian daily newspaper El Comercio. Local officials say deforestation is the likely culprit of the low water levels. While variable water levels are characteristic of the Amazon river ecosystem, the increasingly extreme fluctuations are of great concern.


Summit explores how fish could feed Africa

(08/22/2005) This week policy makers, industry leaders, and development experts are meeting in Abuja, Nigeria to discuss the future of African fisheries and aquaculture. The fisheries sector, consisting of both inland (freshwater) and marine fisheries, is a vital source of food and income to millions of Africans. Fish production, processing and trade provides employment for more than 10 million, while fish exports from Africa are worth US$ 2.7 billion annually. The following is a description of the summit from Fish for All, an initiative seeking to shape public policy on issues from issues as fish and development, fish and nutrition, health, livelihood, environment, gender, water, river basins and coasts, trade and economic growth.


Amazon not holding expected carbon, carbon-credit trading scheme at risk?

(07/28/2005) The rivers of South America's Amazon basin are "breathing" far harder -- cycling the greenhouse gas carbon dioxide more quickly -- than anyone realized.


Fishermen catch 646-pound catfish, believed to be world's largest

(06/30/2005) Thai fishermen caught a 646-pound catfish believed to have been the largest freshwater fish ever recorded, a researcher said Thursday. The 8.9 foot long Mekong giant catfish was the heaviest recorded fish since Thailand started keeping records in 1981.


Down a river of blood into a remote canyon in Madagascar: Exploring the Manambolo River

(04/24/2005) Madagascar has been called the great red island and from space, astronauts have remarked the island looks like it is bleeding to death. Severe environmental degradation means Madagascar loses more topsoil per hectare than any country in the world. Being one of the poorest nations on Earth, the people of Madagascar can ill afford this loss. In 2004 I set off to see one of these rivers that is carrying away the lifeblood of the Malagasy; the Manambolo of Western Madagascar.



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