We all know that we should be doing our part in the fight against climate change. But how much of an impact does simply carrying a reusable bag at a grocery store really have? The rising popularity of e-commerce has led to increased emissions from delivery trucks and waste disposal issues. Technology can even provide effective carbon offsets by offsetting some of your impact on the world with energy-efficient tech, so you can start making a difference within weeks after first changing how you go about shopping online.