Smog Day rings out a warning: 18,000 people die every day from air pollution | Andrew Simms

London's Great Smog began 65 years ago today and changed how we look at air pollution. Yet the air above the UK still hasn't clearedAn estimated 18,000 people die every day worldwide as a result of air pollution. The great majority of the world's population breathe air that does not meet World Health Organization guidelines. Air pollution has become so bad that it's said we now have a "fifth season": this time of year, when lethal smogs envelop some of the most populated parts of the world. Delhi's atrocious smogs, which caused an international cricket match to be halted on Sunday, follow similar ones last year. Related: Pollution stops play at Delhi Test match as bowlers struggle to breathe Continue reading...