煤炭的可持续未来取决于我们能否在不牺牲依赖该行业的人的生计的情况下整合更清洁的做法。
A sustainable future for coal depends on our ability to integrate cleaner practices without sacrificing the livelihoods of those who depend on the industry.
世界通常不在海滩和乡村俱乐部里生活。
永不放弃，永不投降。
Natural experiments are a powerful tool for understanding causal relationships in the real world.
To paint is to remember what the eyes have forgotten.