Articles from Around the Web

"Hydrogen is the most abundant element in the universe but is usually found in compound form. It can be extracted from a variety of sources, including water, fossil fuels and biomass but this requires energy and can release carbon dioxide into the atmosphere. Geologic hydrogen — or natural hydrogen — is pure hydrogen, generated through water-rock interactions deep in the Earth’s subsurface without active stimulation, the researchers said."

"The power-storing building material could also help to offset some of the air pollution generated by the cement industry, widely reported as spewing  5-8% of worldwide planet-warming gas pollution. Those harmful, heat-trapping fumes are contributing to a warmup that is impacting even classroom performance, according to the Environmental Protection Agency." 

"Expanding algae as a cooking-oil ingredient seems promising despite the energy required to heat up fermentation tanks, says Stanford University sustainability professor Steven Davis, who studies agricultural emissions. Fermenting algae is likely to use less water than traditional agriculture while limiting CO2 emissions and the need for fertilizers, he says. Algae can also flourish in many different types of environments, Davis adds. 'If we can reduce the demand for conventional land-based oils, that could be a big win.'"

"To extract enough heat in places with cooler rock, geothermal developers must drill 15,000 feet or deeper, which is more expensive. Faster drilling helped the oil and gas industry dig deeper to squeeze more profits out of shale rock, and analysts expect geothermal drilling speed to similarly improve."