A picture taken on March 14, 2014 shows the Eiffel tower in central Paris through a haze of pollution. More than 30 departments in France are hit by maximum level pollution alerts since the day before, prompting Ecology Minister to say air quality was "an emergency and a priority for the government."  AFP PHOTO / KENZO TRIBOUILLARD (Photo by Kenzo TRIBOUILLARD / AFP)        (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)