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Why do small changes in Earth's temperature have a big impact?
science.howstuffworks.com/environmental/green-science/changes-earth-temperature-impact.htm
Though not everyone agrees why the Earth is getting warmer, temperatures are inching up worldwide. A couple of degrees doesn't seem like such a big deal. What difference can a subtle change make?
The Most Venomous Snake in the World and 19 Deadly Others
animals.howstuffworks.com/snakes/deadliest-snake-in-world.htm
Just one bite from any of these venomous snakes could cost you your life. They're some of the deadliest snakes in the world and you don't want to mess with them.
6 Charts to Help Explain Climate Change
science.howstuffworks.com/environmental/green-science/climate-change-charts.htm
The science is off the charts. Climate change is here and it's affecting the planet. We'll tell you how and where.
The Ancient Mayfly Briefly Lives Only to Reproduce and DieÂ
animals.howstuffworks.com/insects/mayfly.htm
Mayflies have the shortest adult life span of any animal, but swarms of them can still be seen on weather radar.
How did 168 conquistadors take down the Incan empire?
history.howstuffworks.com/history-vs-myth/conquistador-incan-empire.htm
The Incan empire was erased from existence by fewer than 200 men, but how was this possible? Find out how the Incan empire was brought down.
Can You Name All the Countries in the Northern Hemisphere?
play.howstuffworks.com/quiz/can-you-name-all-the-countries-in-the-northern-hemisphere
Even if Wacko's song of the countries is a little outdated, he might be able to pass this quiz. Do you think you have the northern knowledge to beat him?
Anyone With the Most Basic Geographic Knowledge Should Get 19/26 on This Quiz
Mountains, rivers, country borders ... How well do you know the globe? This quiz will test your knowledge of basic world geography - start scrolling and see if you can get your bearings!
Can You Identify These Countries of Oceania From Just a Map Outline?
play.howstuffworks.com/quiz/can-you-identify-these-countries-of-oceania-from-just-a-map-outline
They're beautiful, remote and often not as famous as they deserve! How well would you recognize these gorgeous island nations just based on their silhouettes? It's the ultimate Oceania challenge!
Madagascar's Most Famous Species Is Near Extinction
animals.howstuffworks.com/mammals/madagascar-ring-tailed-lemur-extinction-trouble.htm
Why are lemurs on Madagascar at risk of extinction? Learn more about endangered lemurs in this HowStuffWorks Now article.
Are climate skeptics right?
science.howstuffworks.com/environmental/green-science/climate-skeptic.htm
Climate skeptics believe that climate change is a natural process, rather than the work of man. Learn about different climate skeptic arguments.