Amazon carbon emissions up 40% but somehow still on track for "net zero" by 2040

Amazon just released its 2021 Sustainability Report, in which Kara Hurst, the company's VP of Worldwide Sustainability, boasts:

As part of our efforts to decarbonize our business, we became the world's largest corporate purchaser of renewable energy in 2020, and last year, we reached 85% renewable energy across our business.