Bangladesh, April 23 -- The solution to human-induced climate change is finally in clear view. Thanks to rapid advances in zero-carbon energy technologies, and in sustainable food systems, the world can realistically end greenhouse gas emissions by mid-century at little or no incremental cost, and with decisive benefits for safety and health. The main obstacle is inertia: politicians continue to favour the fossil-fuel industry and traditional agriculture mainly because they don't know better or are on the take.
Most global warming, and a huge burden of air pollution, results from burning fossil fuels: coal, oil, and gas. The other main source of environmental destruction is agriculture, including deforestation, excessive fertiliser use, an...