Intergovernmental Panel on Climate Change (IPCC) - Working Group 1 : The Scientific Basis of Climate Change: Analyses a body of observations of all parts of the climate system; catalogues increasing concentrations of greenhouse gases; assesses the processes and feedbacks which govern the climate system.

Intergovernmental Panel on Climate Change (IPCC) - Special Report: The Regional Impacts of Climate Change: A detailed assessment of the vulnerability of every region on the planet, in eleven chapters. Annexes examine trends and variations, models, and socio-economic baseline data.

Ocean and Climate Change Institute: Abrupt Climate Change: Woods Hole Oceanographic Institution's study of the role of ocean circulation in climate regulation, and research into changing salt levels.

Climate Change: Government of Canada site with background information and resources on global climate change. Issues, actions and resources.

Habitat: Climate Change: An overview of the growing evidence of the sensitivity and vulnerability of natural and human systems, including brief descriptions of threats encountered by specific species: golden toad, western toad, salmon and trout, polar bears, arctic fox, chinstrap and adelie penguins, gray wolves, painted turtles, and tree swallows.

Climate Change and Wildlife: An overview including brief details of the various responses, from changed habits to species decline, of marine and freshwater fish, insects and other invertebrates, mammals, reptiles and amphibians, and birds. [PDF]

Climate Change News: News portal?áprovides links to the latest news on climate change.

Responding to Climate Change: A practical guide to support the United Nations Framework Convention on Climate Change, and the Kyoto Protocol. Provides case studies on greenhouse gas mitigation and adaptation (best accessed using Acrobat).

US Climate Change Science Program: Integrates federal research on climate and global change, as sponsored by thirteen federal agencies. Site provides information on US Federal policy.

Climate Change and Greenhouse Gases: Article reviews scientific understanding of the issue of greenhouse gases and climate change, as presented in peer-reviewed publications. This understanding serves as the underlying basis of the American Geophysical Union's position statement of December 1998.