WhatdotheriseandfalloftheRomanEmpire,theThirtyYears’WarandtheRenaissancehaveincommon?Forone,theywereallstarklyaffectedbyextremeweatherconditions.Indeed,ifwetakeafreshlookathumanhistoryinthelightofEarth’svolatileclimate,wecanexposehiddenparallels,drawsurprisingconclusionsandexplainbizarrehistoricalconundrums.Thistwo-p...