The arrogance of software engineers to believe that a few joules saved would make a difference. Humanity can spread to the stars and we still won't make a significant dent in the overall entropy changes in the universe even after billions of years. Energy consumption is a false herring for moral superiority and control. Replace the traditional Church with environmental activists and you have your modern climate change politics. Climate change is primarily due to increased heat capture caused by emissions. We have plenty of ways to generate clean energy without harmful emissions, nor excuses for social control.