Cassie Werber for Quartz:  There’s a huge project taking shape in the deserts of Oman. It will extract crude oil from the ground by pumping vast quantities of steam into it. To produce the steam, water will be brought to a boil using as much as a gigawatt of energy. The source of that energy: the sun.

Using solar power to get fossil fuels out of the ground will strike some as ironic—especially since, if that method weren’t available, the high cost of extracting the oil might lead to more pressure to use cleaner energy sources, such as solar, instead.

But GlassPoint, the American company behind the new technology, says that the project and others like it will help fossil-fuel drillers limit carbon emissions. The process of “enhanced oil recovery,” where steam is used to loosen thick oil and make it easier to pump, usually involves burning natural gas to heat water. GlassPoint says its technology can cut that gas consumption, and the consequent carbon emissions, by   up to 80%.  Cont'd...