New research challenges assumptions about plug-in hybrids, revealing they may produce higher emissions than expected when accounting for real-world driving patterns and electricity generation sources. Studies suggest these vehicles often rely heavily on gasoline power, particularly on longer trips, undermining their environmental benefits. The findings highlight discrepancies between lab-tested efficiency claims and actual performance, raising questions about their role in climate policy. Critics argue the data could reshape debates on clean transportation alternatives.
Plug-in hybrids generate more emissions than previously thought Sustainability Online