Greentech Media | Shell's Sky Scenario: Solar Dwarfs Oil & Gas as World's Primary Source of Energy Greentech Media Shell, the world's sixth biggest oil and gas company, just published a future "sky" scenario that's getting a lot of attention. That potential future: By 2050, renewables could overtake oil, gas and coal as the primary energy source; by that date, it ... Shell launches Helix HX8 engine oil |