ChJoe wrote:
It is a fact, in past warming's CO2 levels rose AFTER warming occurred. Saying that CO2 is now the driving force in warming is nothing more than an assumption, never before seen in the past. It sure seems like it is but we literally have no clue about it.
I've read that and that is a theory not a fact. Our
Level of carbon dioxide gas (CO2) in the atmosphere in 1800-1870, was about 290 ppm (parts per million).
Our mean global temperature is now 14.8°C, the warmest in tens of thousands of years. Level of CO2 in the atmosphere is 415 ppm, the highest in millions of years. That is a staggering increase in a minute amount of time.
In 2019, the index rose to a value of 1.45, meaning that the heat trapped in the atmosphere that is primarily attributable to human activity has risen 45 percent since 1990.
Five greenhouse gases account for about 96 percent of the increased climate-warming influence since 1750. The AGGI also tracks 15 secondary greenhouse gases responsible for the remaining 4 percent.
Image
The left axis of this graph shows radiative forcing, relative to 1750, of all the long-lived greenhouse gases, with carbon dioxide having by far the most warming impact. The NOAA Annual Greenhouse Gas Index, which is indexed to 1 for the year 1990, is shown on the right axis. Credit: Global Monitoring Laboratory
Carbon dioxide, the most abundant human-emitted greenhouse gas, has by far the largest climate-warming impact of the long-lived greenhouse gases. By December 2019, CO2 in the global atmosphere averaged just over 411 ppm. Since 1990, the increase in the atmosphere’s heat-trapping capacity attributable to CO2 alone is now just over 60 percent.
This year’s AGGI confirms that the growth rate of CO2 has accelerated in recent years. It averaged about 1.6 parts per million per year in the 1980s, 1.5 ppm per year in the 1990s and 1.9 ppm per year from 2000-2009. The growth rate surged to an average of 2.4 ppm per year from 2010 to 2019. During 2019, the annual CO2 growth rate increased by 2.64 ppm
There are some facts and numbers for ya, let it soak in if it can. This put out by NOAA
Look at the chart, that is NOT a guesstimate.
https://research.noaa.gov/article/ArtMID/587/ArticleID/2626/Warming-influence-of-greenhouse-gases-continues-to-rise-NOAA-finds