Despite more than 4,500 climate policies over the last three decades, the world is still on track for unprecedented climate change – and many remain unsure how to implement the changes we need to make a difference. Yet some government policies have successfully tackled the effects of a changing climate and are still making tangible progress. A new World Bank report, "Reality Check: Lessons from 25 Case Studies Advancing a Low-Carbon Future", showcases examples across sectors and five continents, from countries as disparate as Egypt, China and Peru.