This joint report by CARE, Germanwatch, ActionAid and WWF warns against irreparable damage from climate change for ecosystems and vulnerable countries. The report explains how governments will need to take new measures to deal with extreme impacts and prepare for losses due to climate change. Unless substantial efforts are taken immediately to reduce greenhouse gas emissions and encourage climate resilient development, global warming could exceed four and even six degrees Celsius. The costs will place a major burden even on industrialised countries, whilst greatly increasing poverty and reversing development gains in poorer regions. The report stresses the irreversibility of a changing climate; all organisations equally underlying that the fast pace of climate change is increasingly exacerbating natural disasters, food crises and even migration issues.