Traced: NVIDIA's Scope 3, +725% since 2020

Claim: NVIDIA's Scope 3 emissions are up 725% since 2020 (Greenpeace briefing, “NVIDIA's AI climate hoax”, Sep 2026).

I traced it to NVIDIA's own disclosures.

The claim holds, and it is the conservative cut. NVIDIA's own FY20 report first published FY20 Scope 3 at 415,913 tCO2e; the FY21 report carries the same year at 1,296,150. On the as-first-published basis the growth is 25.7x, not 7.26x. So 725% is the floor.

The seam to watch is method, not arithmetic. FY26 category 1 switched to supplier-specific activity data, replacing a full spend-based approach, and NVIDIA did not restate the FY25 comparator. On the old basis the arithmetic still runs: FY20 to FY25 is +433%, and FY24 to FY26 is 2.94x.

Source before claim. If you use the number, use the floor, not the ceiling.