Climate change is an existential threat to humanity and the planet we call home. As many have reflected, it has no vaccine. Its economic, social and health impacts will dwarf those of the COVID-19 pandemic – unless we step up our response, and fast. We believe a key reason for inaction on climate change by potential funders is the difficulty both in understanding the issue and in finding effective solutions. This resource pack was developed to help funders overcome these challenges. It provides a range of useful and accessible sources of information on climate change: why it is so urgent, how it impacts other charitable causes, what the solutions are, and how funders – whether through grantmaking, operations or investments – can make a difference.