According to one forecast, IT will account for 21% of global energy consumption by 2030. If we don't change the way we implement software, we will contribute to increasing the carbon footprint. Reducing our carbon footprint is only one of the better-known sustainability goals. There are many other important goals as well. So, it's high time to examine how agility can help to reduce energy consumption and ensure greater - environmental, social & economic - sustainability. The point is not to pursue sustainability for altruistic reasons, but to understand that over time, sustainability is also becoming a key factor that determines a company’s success, both in the search for talent and for customers and markets.