Many people agree with you. Here's a question though. If you observe what they do as against what they say, it's clear that governments in major economies do not share your and their concern and indeed it's difficult to see what can be done if they did. Example: just recently we've seen the British Prime Minister sign off a new raft of offshore oil and gas licenses. This is probably not unrelated to the dramatic decrease in average living standards in the UK thanks to energy policies. UK Climate protesters seem to have had a negative impact on the public especially since Britain's contribution to global warming is estimated to be around 1% - for a population of around 67 million.

Reduce industrial activity? Look at the Mauna Loa CO2 levels from 2020 to 2023 which do not appear to deviate from their regular increase of around 2.3 or so ppm. So even a 'devastating' industrial economic shutdown had no perceptible effect on the relentless increase.

Certainly one contributor to recent warming is the 10% increase in water vapour in the atmosphere brought about by the January 2023 under-sea earthquake off Japan. It's estimated to have projected trillions of gallons of water into the sky thus causing a substantial heating effect.

https://www.aier.org/article/the-devastating-economic-impact....

https://www.abc.net.au/news/2023-02-16/tongan-volcano-impact...

https://www.npr.org/2022/08/03/1115378385/tonga-volcano-stra...