Here's a shot from Beijing, China, taken a few weeks ago during my visit. I wasn't able to post much there because G+ was blocked. As many of you who have been to Beijing may attest, the skies are quite muggy and polluted there. I only saw a blue colored sky once in 10 days. Though I'm not completely certain, this appears to be a nuclear power plant, so what's coming out of those towers would be steam. Maybe that's one step to cleaning up the air in Beijing.