Authors Sameer Akbar | Gary Kleiman ​When President Barack Obama announced that the United States would cut CO2 emissions from its coal power plants by 30 percent below 2005 levels by 2030, he…

Sameer Akbar |

In Africa, where two-thirds of farmers are women, the potential of biofuels as a low or lower-carbon alternative fuel, with applications at the household energy, community and village level, to a…

Daniel Kammen |