Science

Virtual reality reconstructions illustrating the plate tectonic development of the ocean basins and continents, as well as the changing distribution of land and sea during the past 1100 million years.

Offers images of time slices of different ages of the Earth.

Announcement and description of an international workshop on a climatic, biotic, and tectonic transect, pole-to-pole, across the early Mesozoic supercontinent, June 1999. Updated regularly.

Article introducing a model for the evolution of the Colorado River and the origin of the Grand Canyon.

Multi-centennial climate variability in the Alps. Compilation project of instrumental data and proxy information from tree-ring records, isotopic ice core records, and glacier variability records.

Coordinates and encourages the systematic study of atmospheric general circulation models (AGCMs) and to assess their ability to simulate large changes of climate such as those that occurred in the distant past.

Student exercise from Karen L. Bice of Pennsylvania State University.

This project studying the role of climate feedbacks arising for the different climate subsystems (atmosphere, ocean, land surface, sea ice and land ice) and evaluating the capability of state of the art climate models to reproduce climate states that are radically different from those of today.

The MOTIF project proposes a coordinated approach to use past states of the climate system as a demanding test of the capabilities and reliability of the latest generation of coupled ocean-atmosphere-vegetation general circulation models (OAVGCMs).

Provides the data and information scientists need to understand natural climate variability and future climate change. Includes a paleo perspective on abrupt climate change, global warming, drought and Colorado river flow. Operates the World Data Center for paleoclimatology.

Discussion of a hypothesis that Earth was covered by ice from pole to pole for long periods in the geological past.

First chapter of a book by Professor Richard A. Muller.

Article by professor Judith Totman Parrish and Professor Paul Koch discussing the current state of knowledge and future direction of research.