Environmentalist Bjorn Lomborg is noted for writing that climate predictions are notorious unreliable just five years out, how accurate is the science behind the predictions? How do we know which solutions are truly effective?

https://www.quora.com/Environmentalist-Bjorn-Lomborg-is-noted-for-writing-that-climate-predictions-are-notorious-unreliable-just-five-years-out-how-accurate-is-the-science-behind-the-predictions-How-do-we-know-which-solutions-are-truly