Sustainability – especially reducing our carbon footprint – has become a huge topic in many areas of our lives. And as software is eating the world, we need to ask ourselves how we can reduce the carbon footprint of the systems we create. In this session, we will have a look at the current state of green IT and what options we have to reduce the carbon footprint of our systems. We will look at system design, implementation and operations and how we can influence the footprint of our applications on those levels. We will also see what this means in practice, how much effort it is and what the trade-offs are. After this session, you will have a better understanding how you can create greener IT systems and what it means in practice.