When did the myth of Anthropogenic Global warming arise?

Before AGW became an issue, the prevalent fear was ‘nuclear winter’ from a holocaust of nuclear reprisal resulting in substantial ground dust being thrown into the atmosphere, obscuring the sun. It was ‘reported’ particulate matter from industry was doing that anyway. Environmental awareness was driven in part by Saul Alinskywho used community organising to exploit and expand ghettos.

Hillary Clinton learned a lot of her activism from Rules for Radicals, but it was not Hillary who was behind the shift from Global Cooling to the hysteria of AGW, but former Vice President Al Gore. In running for President in 2000, Gore had needed an agenda to galvanise the public over a policy platform. The world had not been cooling, so the flip side became politically something worth putting political capital into. The Information Superhighway campaign in which Gore was alleged to have started the internet tanked. The election campaign had been nearly successful, Gore did not achieve sufficient electoral college votes and proceeded to do what Nixon had not in 1960, disputing the result and dividing the nation.

The world’s weather climate is changing. The world has been heating since the end of the last ice age. The sea levels have been rising since. However, it has not been science which has underpinned AGW response in politics, but hysteria. Carbon Dioxide has been blamed, when it is a trace element that is an important source of plant food. Figures have been falsified by scientific authorities, for example Russia once reported her territory was hotter than all other northern placed states. Historical records have been falsified. Historical events have been overstated, with earthquakes fingered as evidence of AGW.

Sea levels have not risen as much in recent years as they had a hundred years ago. It is evident that the world is not heating commensurate with CO2 output. China is building Islands in the south China seas. Windmills have been inefficient at producing electricity, but efficient at killing birds of all species. Electric cars with a bigger environmental footprint than a six cylinder are promoted as environmentally aware.

The Myth became a global issue in 1998.

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Read David Daniel Ball's answer to When did the myth of Anthropogenic Global warming arise? on Quora