What we know since 1965
The climate science based on physic and thermodynamic concepts start as early as the XIXth cenury. Bricks after bricks it happens that during the Cold War all the elements were aviable to understand the consequence of the increase in CO2, and the cause of this increase ... the human activities.
In 1965, Lyndon B. Johnson had requested a report on the status of the environment with the idea to restore (i.e. it was seen as already degraded) the quality of it. The element about global warming were all present.
The question is why on these basis nothing was done ?
