Archive for the 'climate change' Category

Africa: U.S. Response to Future Water Crisis Takes Shape

Published on 05/11/2012 in climate change, hydrology, management, peak water, policy and world water supply. 0 Comments Tags: , .

Photo retrieved from: www.africastories.org

“Secretary of State Hillary Rodham Clinton requested the report and she named Under Secretary of State for Democracy and Global Affairs Maria Otero to lead the U.S. response to the challenges outlined in the study.

Otero told the Washington audience that the first priority she and Clinton have identified is to help other nations develop their capacity in resources and expertise to cope with future water-scarcity problems. “We know that it is countries and communities that have to lead in securing their own water and in securing their own water future,” Otero said.

The United States must also work to increase international awareness of the potential for future water crises by increasing and better coordinating diplomacy. The United States will help developing countries better prepare for the challenges they’ll face, Otero said, and help them “to prioritize so that water and sanitation are part of their national plans, part of their budgets and part of their overall thinking.”

Otero said finding solutions to secure adequate water supplies for growth and development will require enormous levels of funding that the United States must help mobilize. The application of science and technology to the problem is an important part of the strategy.”

Read more: All Africa

 

lily victoria

MENA Changing Drastically & NASA Has The Pictures To Prove It

Published on 05/07/2012 in agriculture, aquatic ecosystems, climate change, contaminated water, dams, drought, groundwater, hydrology, lakes, oil, peak water, policy, rivers, tap water, water diversions, water shortage and water wars. 0 Comments Tags: , .

“Lake shrinkage in Iran

Retrieved from: www.greenprophet.com

Left: August 1985. Right: August 2010.

Iran’s Lake Oroumeih (also spelled Urmia) is the largest lake in the Middle East and the third largest saltwater lake on Earth. But dams on feeder streams, expanded use of ground water, and a decades-long drought have reduced it to 60 percent of the size it was in the 1980s. Light blue tones in the 2010 image represent shallow water and salt deposits. Increased salinity has led to an absence of fish and habitat for migratory waterfowl. At the current rate, the lake will be completely dry by the end of 2013.

Urban Growth in Morocco

Retrieved from: www.greenprophet.com

Left: July 2, 1985. Right: June 24, 2011.

The Moroccan cities of Agadir, Inezgane and Tikiouine are close to the Atlantic coastline (seen in blue in the images), and stretch into the foothills of the Atlas Mountains. Agadir was nearly destroyed by an earthquake in 1960. Reconstruction has focused on tourism, turning this area into a winter destination. The 1985 image shows the area 25 years into the rebuilding. By 2011, the urban areas reach into the Sahara Desert. Growth has been influenced by the expanding fishing industry and modern commercial ports.”

Read more: Green Prophet


lily victoria

Salt Threatens Massive Mangrove Forest

Published on 05/05/2012 in agriculture, aquatic ecosystems, climate change, contaminated water, forests, hydrology, rivers and water shortage. 0 Comments Tags: .

Photo retrieved from: www.nationalgeographic.com

“However, as a recent report by Dr. Md. Mizanur Rahman warns, these mangroves are in trouble. They face rising temperature, rising seas, silt and pollution washing down from deforested areas in the Himalaya, and pressures from aquaculture activities around the Sundarbans.

They are also being assaulted by rising salinity, brought by the formerly fresh rivers and streams that feed them. As agriculture increases in the region, water levels drop, minerals accumulate, and salinity rises. Brackish water is also expanding underground.

“Predictions from Sundarbans territory show that salinity may be double over the next few decades posing risks for survival of flora in Sundarbans,” writes Rahman.

He continued, “Natural vegetations of such areas are being destructed causing major changes in landscapes and biodiversity. Destruction of remaining natural habitats in core areas, buffer zones and corridors are also occurring. Most of the coastal districts already face severe salinity problems, with saline water pushing up to 250 km inward during the dry season.”

According to Rahman, Sundari trees and nypa palms are declining, changing the makeup of the ecosystem.”

Read more: National Geographic

 

lily victoria

Big Changes in Ocean Salinity Intensifying Water Cycle

Published on 05/03/2012 in aquatic ecosystems, climate change, hydrology, oceans and peak water. 0 Comments Tags: , , .

Satellite image shows the distribution of water vapor over Africa and the Atlantic Ocean on 2 Sept 2010. Retrieved from: www.motherjones.com

“A paper in Science today finds rapidly changing ocean salinities as a result of a warming atmosphere have intensified the global water cycle (evaporation and precipitation) by an incredible 4 percent between 1950 and 2000. That’s twice the rate predicted by models.

These same models have long forecast that dry areas of Earth will become drier and wet areas wetter in a warming climate—an intensification of the water cycle driven mostly by the capacity of warmer air to hold and redistribute more moisture in the form of water vapor.

But the rate of intensification of the global water cycle is happening far faster than imagined: at about 8 percent per degree Celsius of ocean warming since 1950.

At this rate, the authors calculate:

  • The global water cycle will intensify by a whopping 16 percent in a 2°C warmer world
  • The global water cycle will intensify by a frightening 24 percent in a 3°C warmer world”

Read more: Mother Jones

lily victoria

Drought Causes Water Shortage, Parches Crops

Published on 04/29/2012 in agriculture, climate change, drought, tap water and water shortage. 0 Comments Tags: .

Photo retrieved from: www.english.people.com

“BEIJING – Lingering drought has left more than 8.57 million people short of drinking water and huge areas of farmland parched in China, the nation’s top drought-relief authority said Friday.

As of Friday, droughts have affected 3.64 million hectares of farmland, mostly in the provinces of Yunnan, Shanxi, Hubei, Sichuan and Gansu, according to the Office of State Flood Control and Drought Relief Headquarters.

The amount of farmland and number of people affected by the droughts are both below the average figures registered in previous years, said the office.

Since mid-April, arid regions in the south have seen rounds of scattered rainfall, but the rains have been too weak to ease regional droughts, the office said.”

Read more: China Daily

lily victoria

Warm Spring May Mean Drought and Wildfires in West

Published on 04/27/2012 in climate change, displacement of people, drought, hydrology, rivers and tap water. 0 Comments Tags: .

Photo retrieved from: www.nationalgeographic.com

“On April 10th, 61 percent of the lower 48 states were listed by the U.S. Drought Monitor to be in abnormally dry or drought conditions. And the Southwest, which largely relies on ice melt into the Colorado River Basin from the Rocky Mountains and previous years’ melt stored in the Lake Powell and Lake Mead reservoirs for its water supply, is poised for a dry, hot summer, because those areas received less than 70 percent of the average snowfall according to the USDA National Water & Climate Center.

These reservoirs are already at only 64 percent capacity following a decade-long drought from 2000 to 2010. And the possibility of more drought years to come is raising concerns over how to manage a river of which every drop (and then some) is now allocated to some use.

Drought, however, may be only one factor in the drying up of the Colorado River Basin. To assess the vulnerabilities of the watershed and consider how water supply and demand might change in the coming years, the U.S. Department of the Interior’s Bureau of Reclamation has embarked on a study of the Colorado River Basin to be released this July. An interim report shows that current water use outstrips the supply and projected demand for water could be greater than the projected supply by more than 3.5 million acre-feet within 50 years, particularly when the effects of climate change are included.”

Read more: National Geographic

 

lily victoria

Study reveals groundwater resources in Africa

Published on 04/24/2012 in climate change, groundwater, hydrology and management. 0 Comments

Photo retrieved from: www.bgs.ac.uk

“The largest groundwater volumes are found in the large sedimentary aquifers in the North African countries Libya, Algeria, Egypt and Sudan,” “the scientists said in their paper, published on Friday.

They estimate that reserves of groundwater across the continent are 100 times the amount found on its surface, or 0.66 million cubic kilometres.

Writing in the journal Environmental Research Letters, they cautioned, though, that not all of the reserves are accessible.

Where they are, small-scale extraction by hand pump would be better than large-scale drilling projects, which could quickly deplete the reservoirs and have other unforeseen consequences.

Extraction complications

Groundwater is no panacea for Africa’s water shortages but it could form an important part of a strategy to cope with an expected sharp increase in demand for water as the continent’s population increases.

Even now, some estimates put the number of Africans without access to safe drinking water at more than 300 million and only 5 per cent of arable land is irrigated.”

Read more: Aljazeera

 

lily victoria

Melt Or Grow? Fate Of Himalayan Glaciers Unknown

Published on 04/24/2012 in climate change and glaciers. 0 Comments Tags: .

Photo retrieved from: www.npr.org

“The Himalayas are sometimes called the world’s “third pole” because they are covered with thousands of glaciers. Water from those glaciers helps feed some of the world’s most important rivers, including the Ganges and the Indus. And as those glaciers melt, they will contribute to rising sea levels.

So a lot is at stake in understanding these glaciers and how they will respond in a warming world. Researchers writing in the latest issue of Science magazine make it clear they are still struggling at that task.

Just a few years ago, it seemed that the Himalayas were on the brink of disaster. The U.N.’s Intergovernmental Panel on Climate Change (IPCC) made alarming claims about the fate of all that ice. You can almost see Jeffrey Kargel at the University of Arizona cringe as he describes it.

“One page had the most egregious errors you could imagine, just one after another, including the claim that the glaciers would disappear by 2035,” he says.

But the claim was dead wrong. The error put a lot of egg on the face of the IPCC. But it also sent glacier scientists scrambling. They knew very little about the state and the fate of those glaciers, even the basics.”

Read more: NPR

 

lily victoria

Water Risk Threatens Businesses, National Security

Published on 04/10/2012 in climate change, displacement of people, drought, floods and management. 0 Comments Tags: , , , , , , .

Retrieved from: Forbes

“One of climate change’s biggest impacts is on water systems. Unreliable water can impact both corporate bottom lines and jeopardize natural security, as two recent reports point out.

“Climate change is changing precipitation patterns and intensity, increasing the incidence of droughts, floods, and erosion. These changes are making water supply and quality more difficult to obtain, affecting runoff and soil moisture, increasing water temperatures, decreasing snowpack and lake and river ice, threatening fish and aquatic species, and allowing saltwater intrusion and sea level rise. These changes are difficult to plan for, as past water patterns can no longer be used to predict the future. That uncertainty is problematic for businesses and can cause political strife, but some states and regions are taking proactive steps to avoid water trouble and will therefore be more reliable places to do business.

“A recent report from the Natural Resources Defense Council ranked U.S. states based on how their governments are planning and preparing for the water–related impacts of a changing climate, including whether they have strategies to reduce the greenhouse gas pollution that contributes to climate change and whether they have adaptation plans for projected climate-related impacts. The report includes an interactive online map highlighting the unique water vulnerabilities each state faces and what each is doing — or not doing — to prepare. Climate modeling was drawn in part from a 2009 report (PDF) from the U.S. Global Change Research Program, but the NRDC report also considered state’s policies. It said:

“Some states are leading the way in preparing for water-related impacts with integrated and comprehensive preparedness plans that address all relevant water sectors and state agencies. Unfortunately, other states are lagging when it comes to consideration of potential climate change impacts — or have yet to formally address climate change preparedness at all.”

Read more: Forbes

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Climate Change Linked to Waterborne Diseases in Inuit Communities

Published on 04/08/2012 in climate change, groundwater, hydrology and waterborne diseases. 0 Comments Tags: .

Photo retrieved from: www.nationalgeographic.com

“As global warming triggers heavier rainfall and faster snowmelt in the Arctic, Inuit communities in Canada are reporting more cases of illness attributed to pathogens that have washed into surface water and groundwater, according to a new study.

The findings corroborate past research that suggests indigenous people worldwide are being disproportionately affected by climate change. This is because many of them live in regions where the effects are felt first and most strongly, and they might come into closer contact with the natural environment on a daily basis. For example, some indigenous communities lack access to treated water because they are far from urban areas. (See a map of the region.)

“In the north, a lot of [Inuit] communities prefer to drink brook water instead of treated tap water. It’s just a preference,” explained study lead author Sherilee Harper, a Vanier Canada graduate scholar in epidemiology at the University of Guelph in Ontario, Canada. ”Also, when they’re out on the land and hunting or fishing, they don’t have access to tap water, so they drink brook water.”

The experiences of the Inuit and other indigenous communities as they struggle to adapt to changing climate conditions could help guide humanity in the coming years when the effects of climate change are felt universally, scientists say.”

Read more: National Geographic

 

lily victoria