Guardian: China’s most populous river needs massive investment and careful planning to ease the impact of climate change, which is causing floods, droughts and storms to intensify, a new report (pdf) said today. The Yangtze delta, which is home to about 400 million people, has been warming far faster than the global average for more than a decade and the implications for food security and biodiversity will worsen without remedial action, according to the study led by WWF China. The …