Cold Climate, Warm Climates: How Can We Tell Past Temperatures?
http://www.giss.nasa.gov/research/briefs/schmidt_01/

Gavin Schmidt, NASA Goddard Institute for Space Studies


This brief NASA article provides general information about paleoclimatology (the study of past climate). Focusing on ice core data and foraminifera (shelled marine microorganisms) in deep sea sediments, the article provides a summary of how paleoclimate can be inferred.

This resource is referenced here:
Subject: Biology:Biogeochemistry, Microbiology, Geoscience:Atmospheric Science:Climatology , Geoscience:Geology:Sedimentary Geology:Depositional environments:Deep Marine Environment, Environmental Science:Ecosystems:Biogeochemical cycling
Resource Type: Scientific Resources:Overview/Reference Work
Grade Level: General Public, College Lower (13-14), High School (9-12), Middle (6-8)
Topics: Biosphere:Microbiology, Climate, Energy/Material cycles, Biosphere:Biogeochemistry, Earth surface:Sedimentary Geology:Depositional environments:Deep Marine EnvironmentKeywords: foram, CO2, carbon dioxide