[AuthAuth]

Its only falling per Chinese gov data. The trend since 2019 is for them to downplay emission data and when the next international review comes around we'll have seen that it was actually increasing for the past 3 years and everything will be revised and they will say oh its decreasing starting from now and everyone will forget that the gov stats were lying and take their word that its decreasing.

[defrost]

  NASA’s Orbiting Carbon Observatory, 2 (OCO-2) provides the most complete dataset tracking the concentration of atmospheric carbon dioxide (CO₂), the main driver of climate change. Every day, OCO-2 measures sunlight reflected from Earth’s surface to infer the dry-air column-averaged CO₂ mixing ratio and provides around 100,000 cloud-free observations.

[JumpCrisscross]

…and what do those data say about China’s emissions?

[defrost]

There's a multi author decade retrospective report:

  *Observing CO2 from space*: A Decade of progress from NASA’s Orbiting Carbon Observatories (OCO-2 and OCO-3)

~ https://agupubs.onlinelibrary.wiley.com/doi/toc/10.1002/(ISS...

The take away is that the orbiting readings are bedded in reality and don't contradict what's being released as official ground numbers for China (they have ground reading networks that overlap with internationally staffed / instrument supplied networks)

  (2025) A recent article published in the journal of Earth and Space Science provides a comprehensive evaluation of the latest version of the OCO-2 total column CO2 retrievals against data collected from a global ground-based network known as the Total Carbon Column Observing Network (TCCON).

Comparisons of the v11.1 Orbiting Carbon Observatory-2 (OCO-2) XCO2 Measurements With GGG2020 TCCON - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024EA00...

~ https://www.tccon.caltech.edu/

  (2026) We provide the first global comparison between OCO-2/3 with COCCON observations to evaluate the mean differences between the ground- and space-based data sets and identify regions where these differences are most pronounced.

Comparing v11.2 OCO-2 and v11 OCO-3 CO Retrievals With Ground-Based COCCON Measurements - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025EA00...

[defrost]

I'd love to know- ATM I've been on the hop all day and haven't had the time or the access to have a look see .. NASA datasets have less live website presentation this last year.

The main point to be landed by that terse comment was that the world isn't merely reliant on CCP statements.