Drive to boost China's electric car industry
7 March 2013 Last updated at 00:42 GMT
As China's leaders meet in Beijing for the annual parliamentary session, pollution is high on the agenda.
Some analysts believe this might now prompt a renewed effort to kick-start the domestic electric car industry.
So far, no country has succeeded in making the dream of emission-free driving a reality - despite the lofty ideal.
John Sudworth reports from China.