Gaya Herrington, a Harvard-trained KPMG Director of Sustainability Services and now a Club of Rome member.
In the engine she is the analyst who revived and validated the old 'Limits to Growth' collapse modeling with modern figures.
Her peer-reviewed 2020 update in the Yale Journal of Industrial Ecology compared today's data to the 1972 World3 model and found that resources are more abundant than assumed but pollution is worse, so real-world data tracks the pollution-driven 'BAU2' collapse path — with industrial output per person peaking in the late 2020s and declining by 2030-2040 — and the paper went viral.
It matters because a mainstream corporate risk expert, not a fringe activist, confirmed that current data lines up with a collapse scenario, giving the old warnings fresh credibility.