Currently accounting for 3% of new car sales, plug-in hybrid electric vehicles are sold as low-carbon alternatives to fossil fuel and conventional hybrid cars. But a new report threatens to shatter their green credentials. Research from the pressure groups Transport and Environment and Greenpeace has claimed that CO₂ emissions from plug-in hybrid cars are “two and a half times” higher than tests by manufacturers suggest. While these official figures place the average emissions from plug-in hybrid vehicles at 44g of CO₂ per kilometer, the new report argues that it’s more like 120g on roads. So why is there such a…
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