Post by Zack Labe / Redsky

Zack Labe • Feed

My climate change dashboard is updated for this month... Higher resolution graphic available at zacklabe.com/climate-chan... 🧪

This graphic shows four line graph time series and each are monthly from January 1984 through July 2025. The first graph is a 12-month running mean of global mean surface temperature anomalies. Anomalies are computed relative to a 1991-2020 baseline using ERA5 data. The second graph is monthly carbon dioxide abundance. The CO2 graph is the Keeling Curve. Current levels are 428 ppm. The third graph is monthly global methane abundance. Current levels are 1935 ppb. The fourth graph is monthly global nitrous oxide abundance. Current levels are 339 ppb. The three greenhouse gases show seasonal cycles and long-term increasing trends using data from NOAA ESRL. The global mean surface temperature anomaly record also exhibits decadal variability and a long-term increasing trend. All graphs are rising and shown in four different colors, including white, yellow, orange, and pink.

aug 28, 2025, 12:21 pm • 98 48

Replies

Trending upward faster.

aug 29, 2025, 5:27 pm • 1 0 • view

Thx for the work!

aug 28, 2025, 1:10 pm • 1 0 • view

Reading an older SF book which refers to methane as a potential exoplanet biosignature because, before modern mass animal agriculture, its concentration in the atmosphere was minimal. Is that accurate?

aug 28, 2025, 1:47 pm • 0 0 • view

Unfortunately that's outside of my area of research.

aug 28, 2025, 2:13 pm • 1 0 • view

Gotcha. I assumed our knowledge of pre-industrial methane concentration, which would roughly correspond to pre-big agriculture, would be the same as our knowledge of CO2. Thanks!

aug 28, 2025, 3:21 pm • 0 0 • view

All the data and science available to us and nothing can be done 🤷‍♂️ that’s not an accident.

aug 28, 2025, 12:54 pm • 0 0 • view