'Something's changed': Summer 2023 is screaming climate change, scientists say | CBC News
https://www.cbc.ca/news/canada/calgary/climate-change-something-changed-summer-2023-canada-1.6929271
https://www.cbc.ca/news/canada/calgary/climate-change-something-changed-summer-2023-canada-1.6929271
They published this in Popular Mechanics in 1912, we've been ignoring this for a long time:
The furnaces of the world are now burning about 2,000,000,000 tons of coal a year,โ the article reads. โWhen this is burned, uniting with oxygen, it adds about 7,000,000,000 tons of carbon dioxide to the atmosphere yearly. This tends to make the air a more effective blanket for the earth and to raise its temperature. The effect may be considerable in a few centuries.
Also, this Wikipedia article has a good summary on the overall arc of our understanding: https://en.wikipedia.org/wiki/History_of_climate_change_science