Climate change mitigation remains essential for our work to build a safe and sustainable future. But the greenhouse gases that have accumulated in the atmosphere over the past century and a half have already set changes in motion. Infrastructure and communities around the world urgently need to adapt to a climate characterised by more frequent and more severe storms, droughts and floods. And given the interdependence between business and society, business has a strong interest and critical role to play in these efforts. In this theme we have been developing tools to help both businesses and communities adapt to this new risk reality: a web-based platform for sharing information and best practices; a risk-based framework to help decision-makers prioritise their adaptation investments; and a new protocol to equip leaders to measure and manage community resilience to climate change.