While there might be some short-term positive effects for certain areas of the globe, in the long-term it will be negative for everyone. Having watched two very good interviews with climate scientists recently, both were warning about the collapse of current global systems by mid-century. As things get warmer and climate shifts, many places currently important for producing food will get too hot and too dry for consistent agriculture, and we'll start to see food shortages. Drought and heat will also begin to make some parts of the world unlivable, and people will migrate out of necessity, which given the current political climate, you know how that will go. One of the scientists said that, at current warming trends, the world will reach that level of heat in the 2040s, and we'll start to see the breakdown of current social, political and trade systems. Everyone will be negatively affected at that point.