The Tamil Nadu government has come up with a greenhouse gas inventory compendium for Coimbatore, Tiruchi and Tirunelveli. The aim is to prepare a contextual and inclusive climate- resilient action plans for these cities. The manufacturing and construction sectors accounted for the highest quantum of greenhouse gas emissions in Coimbatore (35%). In Tiruchi, the residential sector topped the list (35.6%), followed by waste (31.7%). Transport accounted for 15% in both cities.