Report: Turn Down The Heat

Why a 4°C Warmer World Must be Avoided

November 2012
Executive Summary

This report provides a snapshot of recent scientific literature and new analyses of likely impacts and risks that would be associated with a 4° Celsius warming within this century.

It is a rigorous attempt to outline a range of risks, focusing on developing countries and especially the poor.

A 4°C world would be one of unprecedented heat waves, severe drought, and major floods in many regions, with serious impacts on ecosystems and associated services. But with action, a 4°C world can be avoided and we can likely hold warming below 2°C...

Source: A Report for the World Bank by the Potsdam Institute for Climate Impact Research and Climate Analytics
Author: PIK

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