The average American throws away more than 900 pounds of trash every year, and as the organic waste degrades it produces methane gas. Some landfills are now exploring ways to use it rather than venting the gas directly into the atmosphere.
Secretary of Energy Steven Chu announced $20 million towards the research and development of non-conventional geothermal energy technologies in three areas: low temperatures fluids, geothermal fluids recovered from oil and gas wells and highly pressurized geothermal fluids.
With better forecasting, utilities can more reliably connect variable power sources such as wind energy with electricity grids, and can decrease their need for back-up energy sources such as natural gas and hydropower.
A trillion holes in a silicon wafer the size of a compact disk? Buying when the Columbia River Basin is low, and selling when it's high. And how supercomputers can revolutionize climate science and modeling.