waldo Posted November 30, 2013 Report Share Posted November 30, 2013 that it was warmer in the long distant past (your described 500-600 million years ago) has absolutely nothing to do with today's relatively recent warming and attributions therein. Any climate is a result of forcings... those forcings of the past are known and have no correlation to today where mankind is the most significant influence relative to anthropogenic forcings on climate. Those of you who advocate against mitigation, presume to do so because... you either could care less about the impacts of warming... or you believe the amount of expected warming will be low(er). When you undercut your own "argument", when you reference back to the long distant past, you are reinforcing climate is highly sensitive to positive feedbacks... you are accepting that the climate of today will be significantly influenced by positive feedbacks; feedbacks that will amplify the basic warming associated with CO2. Equally, when you acknowledge that climate sensitivity is higher, you are accepting that warming will not occur slowly... you are undercutting your own position advocating for adaptation; a position that has an underlying premise that there will be time to react and adapt. Your claim that more positive feedback = faster climate change isn't accurate. Different feedback mechanisms have different time responses. no - high(er) sensitivity to varying fast and longer-term positive feedbacks implies greater warming overall, implies a greater enhancing influence of those longer-term positive feedbacks on warming --- greater warming overall, relative to quick warming associated with fast feedbacks and protracted resultant warming associated with longer-term feedbacks. Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.