This new report from the Science Based Targets initiative (SBTi), prepared by CDP and the UN Global Compact, takes stock of corporate climate ambition in G7 countries, assessing the temperature ratings of the leading equity indexes of these markets. Analysis is based on emissions reduction target data submitted by companies to CDP and the SBTi. It focuses on mid-term rather than long-term target data, given the urgency to halve emissions by 2030. The report frames science-based target setting as the solution to bridge the ambition gap, outlining four levers to unlock breakthrough climate mitigation action through science-based targets.