Bjorn Lomborg
- Bjorn Lomborg is adjunct professor at the Copenhagen Business School. He is the organizer of the Copenhagen Consensus Center, which brings together some of the world's top economists, including 5 Nobel laureates, to set priorities for the world. The opinions expressed are his own. -

In this blog, I would like to share with you some of the best – and worst – ways to fix climate change. This is important because the Earth is warming up, increasing concentrations of carbon dioxide are contributing to this warming, and humankind is dumping ever-increasing amounts of CO2 into the atmosphere.

Of course, this is a point that is made by many campaigners, politicians and the media every single day. But I think that in our discussions on global warming, we actually often miss a really important question: not if we should do something about global warming - but rather how best to go about this. Just like with any other problem we face, there are many possible remedies, and some of them are a whole lot better than others. Not just cheaper (although cost is one very important criteria), but more effective, more efficient and - crucially - more likely to actually happen.

We need to focus on the cost of the solutions and the real-world benefits we should expect from them. Why? Because I believe it is nothing less than morally unconscionable to spend enormous sums of money making a minor difference to long-term global warming and human well-being, if we could achieve a lot more impact – and leave future generations better-off – with a smaller investment through a smarter solution.

This year, my think-tank, the Copenhagen Consensus Center, commissioned 21 new research papers – you can read them all here along with summaries and op-eds on them – that examine the costs and benefits of a multitude of responses to global warming. Each research paper carefully examines one response to global warming, and highlights the costs and benefits of that approach.