Climate Dynamics: Facing the Harsh Realities of Now Climate Sensitivity, Target Temperature & the Carbon Budget Guidelines for Strategic Action It is with the utmost concern that we draw your attention to the fundamental methodological flaw in the determination of the value of Climate Sensitivity that is embedded in the Summary for Policymakers of the Scientific Workgroup of the 5th Assessment Report of the IPCC. The error was replicated in the Reports of Workgroups 2 and 3 and carried forward into the Synthesis Report. It has been used as the given basis for every subsequent publication. Our radical analysis of Climate Dynamics has generated a new and robust value of "Earth System Sensitivity" which has profound implications for:



• The relationship between temperature change and cumulative carbon emissions.

• The calculation of "available carbon budget".

• The evaluation of the INDCs.

• The terms of reference of COP21 in Paris (30 November - 11 December 2015).

• The future global strategy for climate stabilisation.

Our analysis is published in dual media (triple-screen video and fully illustrated PDF). These can be used separately or in combination. The video is accessed by clicking on the head-shot of David Wasdell (which opens in the OnSync video conferencing platform). The pdf is accessed by clicking on the title slide.