Remove Climate Change Remove South America Remove Universal Remove Water
article thumbnail

New ORNL tool to assess global freshwater stress suggests that population growth could be a bigger factor in water availability than increasing temperatures

Green Car Congress

An Oak Ridge National Laboratory (ORNL) paper published in Computers & Geosciences outlines a process that might help to determine the relative importance of population increases vs. climate change. Our work establishes a new method to couple geographic information system data with global climate outputs and statistical analysis.

Water 236
article thumbnail

Study finds methane emissions from coal mines ~50% higher than previously thought

Green Car Congress

Kholod said that when a closed mine is flooded, water stops methane from leaking almost completely within about seven years. Kholod is a scientist at the Joint Global Change Research Institute, a partnership between PNNL and the University of Maryland where researchers explore the interactions between human, energy and environmental systems.

Coal 321
article thumbnail

Study Finds Ozone, Nitrogen Change the Way Rising CO2 Affects Earths Water

Green Car Congress

Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways. Benjamin Felzer, Lehigh University.

Ozone 186
article thumbnail

Study Finds Unexpected Decadal Decline in Global Evapotranspiration, Links It to Moisture Limitation in Southern Hemisphere

Green Car Congress

The soils in large areas of the Southern Hemisphere, including major portions of Australia, Africa and South America, have been drying up in the past decade, according to the first major study of evapotranspiration on a global basis. —Beverly Law, a professor of global change forest science at Oregon State University.

Global 170
article thumbnail

Study finds that biofuel crops grown on marginal lands could produce up to half of worlds current liquid fuel consumption without impacting crops

Green Car Congress

Maps of land available for bioenergy production under one of the scenario 4 in US, Europe, China, India, South America, and Africa. Under any of the projections, Africa has more than one third, and Africa and South America have more than half of the total land available for biofuel production. Credit: ACS, Cai et al.

Fuel 231
article thumbnail

U Calgary study finds oil shale most energy intensive upgraded fuel followed by in-situ-produced bitumen from oil sands

Green Car Congress

A team at the University of Calgary (Canada) has compared the energy intensities and lifecycle GHG emissions of unconventional oils (oil sands and oil shale) alongside shale gas, coal, lignite, wood and conventional oil and gas. This is not the same as crude oil occurring naturally in shales, as in the Bakken. Earlier post.).

Oil-Sands 150