NOAA Paleoclimatology Program [IA][Direct] -
Scientific data and information related to climate system variability and predictability. Paleoclimatology is the study of the patterns of ancient weather.
Paleoclimates from Arctic Lakes and Estuaries (PALE) [IA][Direct] -
Major goals are to reconstruct Arctic climate variations over the past 150,000, 20,000, and 2000 years and to understand the interactions of these variations with the global climate system.
Scientific American: Snowball Earth [IA][Direct] -
Hypothesis that ice entombed our planet hundreds of millions of years ago, and complex animals evolved in the greenhouse heat wave that followed.