How Long Have We Been in the Anthropocene Era? Paul J. CrutzenWill Steffen Editorial Commentary Pages: 251 - 257
The Anthropogenic Greenhouse Era Began Thousands of Years Ago William F. Ruddiman OriginalPaper Pages: 261 - 293
Uncertainty Analysis of Climate Change and Policy Response Mort WebsterChris ForestChien Wang OriginalPaper Pages: 295 - 320
Vulnerability Assessment of the Maize and Sorghum Crops to Climate Change in Botswana A. C. ChipanshiR. ChandaO. Totolo OriginalPaper Pages: 339 - 360
Climatic Aridity and the Relocations of the Zhou Culture in the Southern Loess Plateau of China Chun Chang HuangShichao ZhaoMin Ding OriginalPaper Pages: 361 - 378