Web technologies may have overall positive environmental impacts as well as negative impacts, and these can change over time and vary geographically as both web and environmental technologies develop. We will endeavor not to do further harm to the environment when we introduce new technologies to the web and keep in mind that people most affected by the environmental consequences of new technologies may not be those who benefit from the features introduced. This includes, but is not limited to, lowering carbon emissions by minimizing data storage and processing requirements, as well as reducing electronic waste by maximizing the lifespan of physical devices through backwards compatibility.