Since India and the US are both among the top CO2 emitting countries, it is tempting to judge them with the same yardstick. However, such an inference might not only be simplistic but unfair, because India has never been in climate denial unlike the US. In fact, the country’s tryst with sustainable practices, innovations, movements and governance stretches way back in time, ages before sustainability became a buzz word. Sustainability strategist and futurist Naresh Tyagi’s book Sustainable Promises: Harmonising Horizon, weaves a rich narrative around this heritage, emphasising on the need to blend old-age wisdom with new-age learnings and strategies to secure a sustainable future.