Cars drive down flooded market street in Lagos, Nigeria, with people crowded on either side.


IISD is a driving force in tackling the world’s greatest challenge—climate change.



The science is clear—our climate is changing, and the change is caused by human activity.

We can still make a difference. But we must act together. When the world takes coordinated action, we know profound and lasting impacts can follow.

IISD is actively involved in the two main responses to climate change: adaptation and mitigation. We partner with countries to help them cope with a changing climate and transition to clean energy as quickly as possible. By backing major initiatives like fossil fuel subsidy reform and climate adaptation planning, we use our expertise to lessen the flow and concentration of heat-trapping greenhouse gases and help people build a more resilient future.