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News articles on Drought

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

Prairies at risk from climate change, drought, human activities
(4/3/2006) The Canadian prairies are facing an unprecedented water crisis due to a combination of climate warming, increase in human activity and historic drought, says new research by the University of Alberta's Dr. David Schindler, one of the world's leading environmental scientists/


40 percent of the Amazon could be grassland by 2050
(3/22/2006) Scientists today warned that 40 percent of the Amazon rainforest could be lost by 2050 due to agricultural expansion unless strict measures are taken to protect the world's largest tropical forest.


Disappearing drylands spell trouble says UN
(3/21/2006) According to the United Nations, the continuing degradation of the world'apos;apos;s dryland ecosystems is threatening biodiversity and worsening poverty around the globe. In an effort to bring attention to the dire condition of these important lands, which cover almost half the planet'apos;apos;s land surface, the world organization has proclaimed 2006 the International Year of Deserts and Desertification.


Climate change increases California flood, drought risk
(2/7/2006) 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.


Number of hungry Africans doubles in a decade
(1/24/2006) number of Africans requiring food assistance has doubled in the past decade due to crop failures, drought, failing governments, civil strife, and the impact of AIDS, said the United Nations World Food Programme. The World Food Programme says it will to provide food assistance this year to some 43 million people across Africa, including some 35 million in need of emergency food aid, for a total of over $1.8 billion.


Satellite image of fires in Oklahoma and Texas
(1/2/2006) Drought, high temperatures, and strong winds combined with holiday fireworks, trash fires, and careless cigarettes to create a disaster in parts of Texas and Oklahoma in late December 2005.


Ancient water supply of Sahara at risk, satellite monitoring helps in water management
(12/19/2005) During the last Ice Age, the Sahara was savannah with rivers, lakes and plentiful rains. Over the past 10,000 years that landscape changed, but the rains from that period progressively percolated beneath the ground to be collected in aquifers. Today these aquifers are an important source of water for irrigating agriculture and supporting human populations in the area.


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.


Tropical Atlantic cooling and deforestation correlate to drought in Africa
(12/2/2005) Against the backdrop of the Montreal Summit on global climate being held this week, an article on African droughts and monsoons, by a University of California, Santa Barbara scientist and others, which appears in the December issue of the journal Geology, underlines concern about the effects of global climate change.


6.5 earthquake could cut off California's water supply
(11/2/2005) Appearing before a joint legislative committee, Department of Water Resources (DWR) Director Lester Snow today outlined the catastrophic impact a significant earthquake would have on Delta levees. He said failed levees would cause major floods, threaten public safety, damage the water supply infrastructure, and jeopardize the State's economy.


Deforestation and erosion starving Malawi
(10/13/2005) Forest loss and erosion could doom Malawi to perpetual food shortages as the country's fertile soil is literally swept down to its rivers and flushed out to sea.


Extreme drought drops Amazon river to record low levels
(10/7/2005) 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.


Amazon river at record low levels; deforestation blamed
(9/30/2005) 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.


Tropical deforestation affects rainfall in North America
(9/20/2005) NASA research has found that deforestation in the tropics affects rainfall patterns in North America. Deforestation in the Amazon region of South America influences rainfall from Mexico to Texas and in the Gulf of Mexico. Similarly, deforesting lands in Central Africa affects precipitation in the upper and lower U.S Midwest, while deforestation in Southeast Asia was found to alter rainfall in China and the Balkan Peninsula.


Glaciers melting at alarming rates, water problems feared
(9/7/2005) Global Warming is melting glaciers in every region of the world, putting millions of people at risk from floods, droughts and lack of drinking water says a report from WWF.


California to face water shortage warns new study
(7/27/2005) At current rates, California's demand for water will increase by 40 percent over the next 25 years, warns a new study from the Public Policy Institute of California.


Scientists to set fire to Amazon rainforest to study its resilience
(7/19/2005) Woods Hole Research Center scientists will burn two and a half square kilometers of forest in the transition forest of northern Mato Grosso state in order to study the effects of fire on the rainforest and the forests' ability to recover from repeated burning.


China's Imminent Water Crisis
(5/30/2005) China has long suffered from alternating periods of severe flooding and drought. Combined with high pollution levels and a history of heedless and haphazard policies, the country is witnessing a precipitous drop in this most essential supply.


Drought, fire called biggest threats to Amazon rainforest ecosystem
(4/23/2005) A prolonged drought in the Amazon could lead to a massive die-off in the world's largest rainforest according to a study released in Science last week.


Smoke from forest fires reduces rainfall and spells trouble for the Amazon rainforest
(4/14/2005) Smoke from forest fires reduces rainfall and spells trouble for the Amazon rainforest


Impact of Deforestation - Local and National Effects
(3/1/2005) The local level is where deforestation has the most immediate effect. With forest loss, the local community loses the system that performed valuable but often underappreciated services like ensuring the regular flow of clean water and protecting the community from flood and drought. The forest acts as a sort of sponge, soaking up rainfall brought by tropical storms while anchoring soils and releasing water at regular intervals. This regulating feature of tropical rainforests can help moderate destructive flood and drought cycles that can occur when forests are cleared.


Global Impact of Deforestation - Climatic Role of Forests
(3/1/2005) Tropical rainforests play a vital role in the functioning of the planet's natural systems. The forests regulate local and global weather through their absorption and creation of rainfall and their exchange of atmospheric gases. For example, the Amazon alone creates 50-80 percent of its own rainfall through transpiration. Cutting the rainforests changes the reflectivity of the earth's surface, which affects global weather by altering wind and ocean current patterns, and changes rainfall distribution. If the forests continue to be destroyed, global weather patterns may become more unstable and extreme.


Impact of Deforestation - Soil Erosion
(3/1/2005) The loss of trees, which anchor the soil with their roots, causes widespread erosion throughout the tropics. Only a minority of areas have good soils, which after clearing are quickly washed away by the heavy rains. Thus crop yields decline and the people must spend income to import foreign fertilizers or clear additional forest. Costa Rica loses about 860 million tons of valuable topsoil every year, while the Great Red Island, Madagascar, loses so much soil to erosion (400 tons/ha) that its rivers run blood-red, staining the surrounding Indian Ocean. Astronauts have remarked that it looks like Madagascar is bleeding to death, an apt description of a country with grave environmental degradation and an ever-declining agricultural economy that depends on its soils. The rate of increase for soil loss after forest clearing is astonishing; a study in Ivory Coast (Cote d'Ivoire) found that forested slope areas lost 0.03 tons of soil per year per hectare; cultivated slopes annually lost 90 tons per hectare, while bare slopes lost 138 tons per hectare.



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