Earth Times Earth Times is an independent international electronic newspaper devoted to reporting global and national issues relating to the environment, sustainable development, population, human rights and current affairs. This award-winning site will give you up-to-date reports on and analyses of ecological issues. It is a very good current events resource.

Millennium. At the dawn of the new millennium, National Geographic has produced a Web site that focuses on the important issues that will confront humankind. One of these is climate change. As you read in Chapter 11, debates rage over whether changes in the atmosphere are a threat to ecological security. Form your own opinion as you explore their online "laboratory." A quick review of the carbon cycle can help you grasp how humans have affected the functioning of the
atmosphere. Read about the analysis of ice cores from Antarctica that shows that temperatures and carbon dioxide levels have risen an fallen together over the centuries. View a computer model that depicts how conditions on Earth could change with a rise in carbon dioxide levels. Compare Earth and Vensus' atmosphere, what is the major difference between the two sister planets?

Greenpeace. Greenpeace is an international non-governmental organization (INGO) committed to global environmental campaigning. Its operation focuses on protecting the oceans and forests, phasesing-out of fossil fuels and promoting renewable energies in order to stop climate change. Visit this site to see how a non-governmental actor affects global environmental issues. Find out how you can become a cyber-activist!