What about pollution concerns?
So Singh and other drivers have become a focus of the city's growing pollution concerns.
"Currently, E15 cannot be sold year round because of seasonal air pollution concerns.
Currently, such sales are prohibited during the summer months because of air pollution concerns.
Moreover, large quantities of chromium-containing toxic solid wastes are discharged, posing serious pollution concerns.
Beyond pollution concerns, some critics say Alaska's wild lands and formerly empty fjords and inlets have simply become too crowded.
It could well be the future in areas where water is scant or pollution concerns are elevated.
The pollution concerns don't seem to be dampening people's enthusiasm for gathering around open flames, according to fireplace designers.
While some legislators are focused on air pollution concerns, others point to the jobs lost if those plants vanished.
Since then, slower economic growth in the developing world, along with climate and pollution concerns, have depressed demand for coal.
Nickolas John Themelis, an engineering professor at Columbia University and chairman of the Global Waste to Energy Research and Technology Council, argues that pollution concerns are overblown.
