The 421 ppm reading shattered the claim that the Paris target still held

Collapsing Empires Stories · Oct 12, 2026 · 17m

A June 3, 2022 federal report logged CO₂ at 421 ppm - and the world kept going; what did that mean for the Paris 1.5°C target?

The 421 ppm reading shattered the claim that the Paris target still held

In this episode, we lay out the sequence of reports, studies, and events from early 2022 that together challenged the assumptions behind the Paris Agreement's 1.5°C goal. We outline the data points, policy framing, and everyday reactions that created a mismatch between scientific urgency and public response - and ask what it means if the agreed timeline was already breaking down.

Date: June 3…