File photo of a man discarding a cigarette butt outside a construction site in Central

 
File photo of a man discarding a cigarette butt outside a construction site in Central
A man discards a cigarette butt after smoking outside a construction site in Central, a business district in Hong Kong in this October 18, 2006 file photograph. Michael Bloomberg's charitable foundation will commit an additional $220 million over the next four years to fighting tobacco use globally, including funding for legal challenges against the tobacco industry by countries such as Uruguay.The New York City mayor was set to announce the new funding for Bloomberg Philanthropies on March 22, 2012 at the 15th World Conference on Tobacco or Health in Singapore. His charity will monitor the tobacco industry's strategies and offer legal support to counter its pushback against anti-smoking campaigns. REUTERS/Paul Yeung/Files (HONG KONG)