Energy & Green Tech

Electric aircraft could lead to major climate benefits, says study

Aviation has grown considerably in recent decades and accounts for approximately 2% of global carbon dioxide emissions and some 4% of all climate change impacts annually. While aviation is an important contributor to climate ...

Energy & Green Tech

EU proposes emission rules for last combustion engine cars

The European Union's executive arm proposed pollution standards Thursday for new combustion engine vehicles that are expected to remain on European roads well after the 27-nation bloc bans their sale in 2035.

Energy & Green Tech

A battery prototype powered by atmospheric nitrogen

As the most abundant gas in Earth's atmosphere, nitrogen has been an attractive option as a source of renewable energy. But nitrogen gas—which consists of two nitrogen atoms held together by a strong, triple covalent bond—doesn't ...