for scene 30 of the video " Ice Age Climate Change Precursors versus Global Warming Carbon Politics - Part 5 - Political Dynamics" by Rolf Witzsche - Ice Age Ahead not Global
here for a larger image
The Heidelberg Appeal
In an 1999 article Dr. Hugh Ellsaesser tells us of the Heidelberg Appeal to the scientific community in 1992 that over 4,000 scientists responded to. It was hoped that such a high-level voice would have an impact on the policy makers at the Rio Earth Summit. Their voice wasn't heard. He states that over 35 organizations were publicly standing against the global warming doctrine at the time, whose voices were not heard either..
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Published by Cygni Communications Ltd.
North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F.