After 7 successful tours across India, 'Science Express' has been redesigned on the theme 'Climate Change' and from 15 October 2015, it is running as 'Science Express - Climate Action Special (SECAS). It is a unique collaborative initiative of Department of Science & Technology, Ministry of Environment, Forest & Climate Change (MoEFCC), and Ministry of Railway, Government of India.

The state-of-the-art exhibition aboard the 'Science Express - Climate Action Special (SECAS)' aims to create awareness among various sections of society, especially students, as to how Climate Change can be combated through mitigation and adaptation.