If you think transitioning the tech sector to net zero is all about renewable energy and heat reuse, think again. Small changes in software could make entire data centers redundant - for a much bigger saving for the planet.  Green Software is not just about more efficient code, says Anne Currie. Rewriting everything in C might cut energy use - but it would destroy your company.   As a leader in the Green Software Foundation, and a seasoned green developer and entrepreneur, Anne has much better ideas. She is working with Sarah Hsu and Sara Bergman, on Building Green Software, an O'Reilly book about what green software really means, and how we can achieve it.  Find out more in this podcast.