On a macro level, the World Health Organization recently revised its estimate of the number of premature deaths due to air pollution to seven million annually. On a micro level, the masks commonly worn in heavily polluted cities, such as in China, are a visible sign of the need for change.
幸运的是，公众对化石燃料消费影响的认识越来越清楚。宏观上，世卫组织最近将每年与空气污染相关的早亡人数预期值上调至七百万。微观上，在中国等国家污染最严重的城市，戴口罩表明显然有做出改变的必要。