The goal: In a world focused on limiting climate change, researchers are looking at how transportation affects energy use and greenhouse gas emissions.

Approach: They studied global transportation energy use and greenhouse gas emissions from fossil fuels in 2015. Then they projected how new technologies like electric vehicles and sustainable energy sources could impact these trends until 2050.

Findings: By 2050, electric cars and fuel-cell vehicles will be common, reducing fossil fuel use to zero. This shift will increase electricity demand but make the transport sector more efficient overall, with almost no increase in final energy demand. The shift to renewable electricity will increase efficiency and sustainability in transportation, leading to decreased greenhouse gas emissions and a cleaner future.