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Jan.-Feb. 2008

Lizards
Adaptations help these colorful creatures stay alive in a wild world.

Oil
Modern life runs on oil. That could mean challenges for our future.

Living With a Volcano
Explore a forgotten city destroyed by an ancient volcano.


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Learn more about topics covered in National Geographic Explorer. (Note: Some links take you off the National Geographic website.)


WATER WONDERS

NG News: Acid Oceans Threatening Marine Food Chain, Experts Warn
The world's oceans are turning acidic due to the buildup of carbon dioxide in the atmosphere, and scientists say the effects on marine life will be catastrophic.

NG News: Plankton Declining in Oceans, Study Finds
Satellite surveys have detected a decline in plankton the ocean—a situation that could threaten the marine food chain and undercut one of the world's natural buffers to global warming.

National Geographic Video: Jelly Plankton
You might just miss them if you're not looking closely, but when they get together, jelly plankton make for one of the most luminous displays in the ocean.


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ON THIN ICE

NG News: Arctic Summers Ice Free by 2040, Study Predicts
Summers in the Arctic Ocean may be ice free by 2040—decades earlier than previously expected, according to a new study of the effects of global warming on sea ice.

NG News: Arctic Melt Opens Northwest Passage
The famed Northwest Passage, a direct shipping route from Europe to Asia across the Arctic Ocean, is now ice free.

National Geographic Video: A Way Forward, Facing Climate Change
Explore the global impact of climate change and its effects and learn what scientists suggest in response.


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CRYSTALS

NG Kids: Crazy Crystals
Check out this simple activity to create your very own crystals.

NG News: Giant Crystal Cave Comes to Light
See photos of some of the world's largest crystals, found in a fantastic cave under the Mexican desert.

NG News: World's Oldest Diamonds Discovered in Australia
The world's oldest known diamonds were recently found in Western Australia. What will they tell us about Earth's distant past?


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RESOURCES

National Geographic: Education Guide
Find lesson plans, learn how to contact the Geography Teaching Alliance in your state, get information on grants, and much more.

National Geographic: Publications Index
More than a century of National Geographic content is at your fingertips with this handy reference tool.

National Geographic: News
From archaeology to zoology, there's always something new and interesting to explore.

National Geographic: Xpeditions
Ideas, tools, and lesson plans bring the U.S. National Geography Standards to life.

National Geographic Extreme Explorer
Check out the website of our new magazine for striving readers in middle school. Find photos, games, and videos related to the issue.

National Geographic Young Explorer
Read and listen to a complete issue of our magazine for kindergarten and first grade.

Explorer Funding Letter
Do you have difficulty paying for Explorer? This letter to your students' parents will explain the magazine's value and request the modest subscription cost.

National Geographic School Publishing
Explore a world of resources, order a FREE copy of our K-12 catalog, or learn more about our content literacy programs.


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