Turn down the heat: climate extremes, regional impacts, and the case for resilience.

This report focuses on the risks of climate change to development in Sub-Saharan Africa, South East Asia and South Asia. Building on the 2012 report, Turn Down the Heat: Why a 4 degrees C Warmer World Must be Avoided, this new scientific analysis examines the likely impacts of present day, 2 degrees C and 4 degrees C warming on agricultural production, water resources, and coastal vulnerability for affected populations. The report show that significant significant climate and development impacts are already being felt in some regions, and in some cases multiple threats of increasing extreme heat waves, sea level rise, more severe storms, droughts and floods are expected to have further severe negative implications for the poorest. These impacts are likely to push many vulnerable households below the poverty trap threshold with high temperature extreme's negative impact on the yields of food crops. Promoting economic growth, the eradication of poverty and inequality will likely be a tougher challenge than the one it already is, and immediate steps must be taken to help countries adapt to these risks. The report shows that with the substantive reduction of greenhouse gas emissions, many of the worst projected climate impacts could still be avoided by holding warming below 2 degrees C.