The five ethical stories that will define the next decade

From the use of antibiotics in farming to China's environmental tipping point - a look at the issues that could define the next ten years

China's heavy pollution has been well documented. Last year, Beijing issued two "red alerts" for pollution, the highest level warning which calls for emergency measures such as closing schools and restricting car use. Poor air quality is also having a significant knock-on effect on the country's tourist trade.