So, by now, we have all heard or read about climate change and what we need to do to combat it. Assuming that most of us do not doubt the process of climate change, there is the debate on how to take care of it and most important how to pay for this efforts. The “how to take care” part depends on our evaluation of what the impact of climate change is going to be. On this, there are several schools of thought ( surprise!!), there are climate change models and also economic models which analyse this question. We need to inform ourselves about this debate if we are to contribute meaningfully. If , like many of us, you have been otherwise occupied recently, fear not, here is a piece from Grist.com that will introduce you to all of this in an easy way.