Insanity That We Did Nothing

Former US vice-president Al Gore told UN delegates at the Cop30 meeting in Brazil that :'It is literally insane that we are allowing global heating to continue' and according to a report from the Climate Action Tracker, the World is on track for a catastrophic 2.6C temperature rise.
To put that into context, at the mid 19th Century, when the Industrial Revolution really took off, the Carbon Dioxide (CO2) in the atmosphere was 280ppm while today it stands at 425ppm which is the concentration last seen around 4.6 million years ago in the Pliocene Epoch.   
You may hear people (generally the ones with a vested interest to play it all down) say the the atmosphere is always changing and that is true, it does but by humans pumping our poison into the atmosphere it has taken 250 years to go from 280ppm to 425ppm which is many times faster than it increasing this much naturally, ice cores showing it taking tens of thousands of years to match the current human-caused rate.
The rapid pace of the modern increase means that the current human civilization is experiencing conditions never before seen in its existence,  and since the mid 19th Century, global temperatures have risen by 1.3C and Climate Change is taking a strong grip with fiercer storms, wildfires, droughts, floods and other calamities so it is a scary thought what a doubling of this will unleash on our future generations.
Al Gore then is right to say it is literally insane to allow it to happen but then it shouldn't come as a surprise because environmentalists and climate scientists have been telling us for decades and decades what will happen if we don't roll back the CO2, and yet the people who could do something did nothing and here we are and if you think this is bad, you ain't seen nothing yet.