Climate change presents an existential threat to modern civilization. However, because its effects manifest over generational timescales, the present generation has only limited incentive to address this threat. In the financial sector, institutional investors are becoming more and more aware of the risks presented by climate change and are willing to take action. This WWF report, supported by KAS RECAP, offers a comprehensive introduction into the basics of climate change, based upon the latest scientific knowledge. It further presents an overview on green finance instruments.