December 2014
At a time when economic growth has lifted millions of people from poverty, climate change impacts are posing a new challenge to global development. Extreme weather events such as droughts, floods and storms already constitute three-quarters of global natural disasters, and these events are becoming less predictable, more intense and possibly more frequent as global temperatures rise. More gradual changes, such as shifting rainfall patterns, rising temperatures and more acidic oceans are also taking a toll by putting food and water supplies at risk. In many vulnerable areas, these risks could exacerbate existing challenges and worsen poverty and insecurity.