Seagate claims spinning disks beat SSDs on carbon footprint – Blocks and Files

Flash drive-based vendor Pure Storage has a different point of view, as you might expect. It takes a system-level view rather than per-drive. Pure suggests that, for a 1 exabyte deployment over ten years with a five-year life cycle for the HDDs and a ten-year life cycle for DirectFlash Modules, it finds that the HDD system emits 107,984 metric tons of carbon whereas a Pure-based system emits 14,779 tons.

Their "findings" are almost diametrically opposed to the "research" from Seagate.