Delhi's smog-fighting helicopters can't fly - because of smog

City administrators were told the choppers would be unable to help dissipate the smog until the smog itself clearedAn ambitious plan to use helicopters to fight Delhi's air pollution has been grounded - because the aircraft cannot operate in such thick smog.The Delhi government had engaged a state-owned helicopter company to formulate a plan to use the aircraft to sprinkle water over the city. Continue reading...