Noise pollution, excess water use, exacerbating reliance on fossil fuels, e-waste... This is a good read to understand the very real environmental costs of computing.
"The ecological dynamics we find ourselves in are not entirely a consequence of design limits, but of human practices and choices — among individuals, communities, corporations, and governments — combined with a deficit of will and imagination to bring about a sustainable Cloud. The Cloud is both cultural and technological. Like any aspect of culture, the Cloud’s trajectory — and its ecological impacts — are not predetermined or unchangeable. Like any aspect of culture, they are mutable."
This statistic was disheartening: "Greenpeace estimate that less than 16 percent of the tons of e-waste generated annually is recycled."
https://thereader.mitpress.mit.edu/the-staggering-ecological-impacts-of-computation-and-the-cloud/