The notion of ‘global warming’, which teaches that humans are responsible for climate change, has been forming for more than a century and a half, at first very slowly, and then, since the 1985 second Villach Conference, very rapidly. Since 1985 to the present day, and more especially since 1988, the ‘certainty’ that man is an essential factor in climate change, indeed the principal factor, seems established. The expected global warming is bound to bring in its wake the modification of various elements of the climate, and meteorological parameters will be increasingly modified.
This assurance emerges in the conclusions of the IPCC, in its
Summary for Policymakers
: a result of the previously mentioned
, a blending of scientific and ecological processes driven by international politics.