"Severe, pervasive and irreversible", the news from IPCC's 5th Assessment Report. The report, entitled, Climate Change 2014: Impacts, Adaptation and Vulnerability, warns of the impending risks to the stability of human society. So, folks, let's get moving, we have enough information, we know enough science, and have the knowledge to act now. And, don't forget, that you get what you measure. "Measure the wrong thing and you get the wrong behaviours" (John H. Lingle). The time is now for a national revenue netural carbon tax.