The climate has been warming since about 18,000 years ago for a host of reasons, none of which were related to human activity. Since the industrial revolution there is some evidence that human activity has added to that underlying warming trend. However, there appears to be limits to how much atmospheric CO2 can add to global warming.
A recent study published in 2024 found:
"Experimental evidence in this work confirms earlier work that increasing levels of CO2 at current levels in the atmosphere cannot significantly contribute to warming by more back-radiation. We also demonstrated that increasing greenhouse spurious gases like Freon show a strong response in back-radiation when added
into our atmospheric test chamber. Climate models and their CO2 forcings should
be revised and much more experimental evidence about the IR radiation response
of greenhouse gases should be collected before appointing current warming trends
and climate change mechanisms monocausal to greenhouse gas theories."
https://www.scirp.org/pdf/acs2024144_44701276.pdf
As noted, this is one of a series of studies, that have been concluding, the assumptions regarding the linear impact of atmospheric CO2 on climate are wrong. Instead, we are reaching the limit of how much impact on climate CO2 levels can have in other words the impact is asymmetrical lower CO2 levels would cause the planet to cool more than higher CO2 levels would cause it to warm and no one believes that humans can reduce global atmospheric CO2 levels since they would be increasing even if humans emitted no CO2.
Simply stated, if your local organization is concerned about climate change, realize we are approaching the limits regarding how much atmospheric CO2 can impact climate. Any policies focused on CO2 emissions that create undue hardship on citizens is both expensive and futile.
People are looking for purpose in life and pretending they are "climate warriors" can give them that purpose. But a more helpful use of their time is to help to combat poverty, pollution, poor nutrition, and many other social ills where human effort can make an impact.
