For more than a decade, we have speculated about the impact of artificial intelligence (AI)/machine learning (ML) on the environmental sustainability of computing (see ACM2). It has become clear that Al's carbon emissions (scope 2), lifecycle carbon (scope 3), and other negative environmental impacts are growing explosively. Generative AI capabilities and applications exemplified and popularized in ChatGPT, DALL-E 2, Stable Diffusion, and Copilot, are the drivers. Giga$$$s of increased spending on AI computing equipment and infrastructure is driving a dramatic increase in infrastructure: AI computing silicon and datacenters. From May 2022 to April 2023 (12 months), Nvidia's datacenter group sold $15.5B of GPUs.