This will change our planet forever.
On this Earth Day, look at how humanity has increased global greenhouse gas concentrations (here in CO₂-equivalents), compared to the natural changes over the preceding 130,000 years:
On this Earth Day, look at how humanity has increased global greenhouse gas concentrations (here in CO₂-equivalents), compared to the natural changes over the preceding 130,000 years:
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The last time CO2 was ⬆️📈 430 ppm, was the Mid-Pliocene mass extinction event.
Your using a device to respond to me containing minerals and metals that were most likely extracted and prepared using minimal wage or under award wages workers.
Welcome to the club of the elite 🥂
When did the changes start, dave?
So your ancestors would have been better off staying in the trees.
Can you explain, why your graph shows 573ppm?
Thanks.
https://gml.noaa.gov/aggi/aggi.html
"not included are the radiative forcings arising from spatially heterogeneous, short-lived, climate forcing agents, such as aerosols, clouds and tropospheric ozone, because theay are highly variable and have uncertain global magnitudes and also are not included here."
This creates a lot of confusion.
The IPCC methodology they use provides a tropospheric ozone FORCING estimate of +0.5 W/m²:
It looks somewhat less extreme than the CO₂-equivalent graph, because the forcing of CO₂ increase non-linearly with concentration increase.
Stratospheric Water Vapor and tropospheric ozone are FORCINGS, because they form (mainly) because of methane emissions.
Crucial IPCC graphs:
Jeff understands that these are the crucial parameters that determine how fast our climate changes.
And knows how to clearly communicate it to a broad audience.
🧱
“Drill, Baby, Drill!!!”
https://gml.noaa.gov/ccgg/trends/monthly.html
The 2XCO2 scenario
(from 280 ppm CO2 to 560, now > half-way there)
is predicted to end technological civilization,
possibly end _Homo sapiens._
Have we actually entered that scenario, considering all greenhouse gases, expressed as CO2 equivalents?
🤦