The study, sponsored by the freight truck industry,
adds to concerns over government mandates.
But government officials say the move away from fossil fuels will have economic benefits.
Music
Trailers
DailyVideos
India
Pakistan
Afghanistan
Bangladesh
Srilanka
Nepal
Thailand
StockMarket
Business
Technology
Startup
Trending Videos
Coupons
Football
Search
Download App in Playstore
Download App
Best Collections