S4E12 Final Episode

Air was never just air. Across this series, it turned into a legal issue, a financial instrument, and a market-driven system. Rights were defined, prices were introduced, and emissions became something to trade. But the atmosphere does not respond to laws or markets. It responds to accumulation. This episode brings everything together from the biology that produces the air, to the systems that try to control it, and the points where those systems fail. Because the real question is no longer how we measure air. It is whether what we measure reflects what we actually breathe.