The AA. concentrate on hydrologic and atmospheric circulation changes occurring over the last 2000 years. Here, 8 latitudinally well distributed (pole-equator-pole), highly resolved (annual to decadal) climate poxy records are presented
that demonstrate major changes in these variables over the last 2000 years. A comparison between atmospheric C 14 and these changes in climate demonstrates a first-order relationship between a variable Sun and climate. The relationship is seen on a global scale.