China has become the world’s largest renewable energy producer by accelerating the rollout of solar, wind, and battery storage projects, while in recent years it has also increased its oil and gas output. Efforts to expand its fossil fuel industry are expected to boost China’s energy self-sufficiency over the coming decade, helping to reduce its dependence on other countries for oil and gas imports. The diversification of its energy sources will help ensure China’s energy security at a time when so many other countries are failing…