24 Jan 2011:
New Water Resource Tool
Maps Ground Permeability Worldwide
Canadian researchers have produced a map illustrating the permeability of the porous surface rocks and sediments worldwide
, a tool they say will emerge as a critical resource in water resource management and climate modeling. Using recent lithology results documenting rock types worldwide, scientists at the University of British Columbia were able to map how easily fluids should be able to flow at depths of more than 325 feet (100 meters). Earlier models achieved depths of only about 6 ½ feet (2 meters). “Using our permeability data and maps, we can now evaluate sustainable groundwater resources as well as the impact of groundwater on past, current and future climate at the global scale,” said Tom Gleeson, a researcher at UBC and lead author of the study
published in Geophysical Research Letters
. Groundwater accounts for about 99 percent of the fresh, unfrozen water on the planet.
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A look at how acidifying oceans could threaten the Dungeness crab, one of the most valuable fisheries on the U.S. West Coast. Watch the video.
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An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
An indigenous tribe’s deadly fight to save its ancestral land in the Amazon rainforest from logging. Learn more.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
Residents of the Chocó Rainforest in Ecuador are choosing to plant cacao over logging in an effort to slow deforestation.
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Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.