Planet Earth We Have A Problem
Beyond the Tipping Point: Feedback Dynamics
David Wasdell delivered this copiously illustrated
presentation on the 29th June 2008 to the Strategy-Planning workshop
of the Tällberg Forum in the heart of Sweden. It was subsequently recorded in studio conditions and beautifully
produced by the staff team of the Tällberg Foundation who also added an
introduction by their Chairman, Bo Ekman.
and the onset of Runaway Climate Change
After a basic introduction to climate dynamics, the powerful
feedback system, already accelerating climate change, is analysed. It is argued that we have already passed the
tipping point that marks the onset of runaway climate change, and are fast
approaching the critical threshold beyond which the behaviour becomes
unstoppable. The presentation concludes
with an outline of the global strategy now urgently required to re-stabilise
the life-support system of Planet Earth.
New scientific research, published since the video was
completed, calls for a doubling of the figure used in the presentation for the
strength of the water-vapour feedback. This adds 50% to the calculated power of current global heating and
reinforces the conclusion that runaway climate change has already been
initiated. The urgency of the
imperative response to the global emergency cannot now be overstated.
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