宋怡明日前在接受美国之音采访的时候表示，这本专著虽然已经出版十多年了，但它所展示的问题在今天对世界各国依然有意义；世界各国在跟中国 ...

Volcanic eruptions that triggered climatic extremes could have heralded deadly plague and famine in Europe and undermined the Roman empire. Climate change may have helped to alter the course of ...