This week's subject: The Arctic Circle

The land above 67 degrees north latitude supports a variety of plant and animal life. Temperatures in some "cold countries" are moderate and during the summer, there is sunlight 24 hours a day. Temperatures within the Arctic Circle have been rising, prompting scientists to search for a link to global warming. Students and others can learn more about the Arctic Circle by using the direct links on The Times' Launch Point Web site: Go to:

http://www.latimes.com/launch