Press Association: The number of people hit by climate-related disasters around the world will increase by more than half in the next six years, aid agency Oxfam has warned. The charity predicted the number affected by events such as flooding, storms and drought would rise from 242 million people to hit 375 million a year by 2015. And with the humanitarian aid system already a “postcode lottery on a global scale”, it is already barely able to cope with current levels of disasters and could be …