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Did the Mayan civilization end because of climate change?
science.howstuffworks.com/environmental/green-science/climate-change-end-mayan-civilization.htm
Over the years, many theories have been advanced about why the once-mighty Mayan civilization fell. But a newer one is getting attention: Was it because of climate change?
How Ethiopian Traditions Work
people.howstuffworks.com/culture-traditions/national-traditions/ethiopian-tradition.htm
Many Ethiopian traditions go back for hundreds of years. Find out about Ethiopian traditions at HowStuffWorks.
Why landscape with native plants?
home.howstuffworks.com/lawn-garden/professional-landscaping/landscape-with-native-plants.htm
Native plants are usually easier to take care of and they can be less expensive than non-native species, too. Learn about native plant landscaping.
Plastics Will Outpace Coal in U.S. Carbon Emissions, Study Shows
science.howstuffworks.com/environmental/conservation/issues/plastics-overtake-coal-news.htm
A new report released by Beyond Plastics suggests that plastics will release more greenhouse gas emissions than coal plants in the U.S. by 2030.
How Think Tanks Work
people.howstuffworks.com/think-tank.htm
Think tanks reign as the place where scholars, policy makers and other folks work to find solutions to public problems. Learn more about think tanks.
Can You Be Allergic to Your City?
If you're moving from one city to another, pack some extra tissues because it's true: Seasonal allergies can flare up when you relocate and are exposed to new allergens.
What if we ran out of fossil fuels?
science.howstuffworks.com/science-vs-myth/what-if/what-if-ran-out-fossil-fuels.htm
We wouldn't stop requiring power. So how would a turn to alternative energy sources work out for transportation, international trade and our daily diets?
Popping a Lawn Bubble Is Like Popping a Zit
home.howstuffworks.com/lawn-bubble.htm
You've probably never seen one, but it looks like a waterbed in your yard. And trust us, if you do see one, you'll have an impulse to pop it.
How Well Do You Know the US States?
play.howstuffworks.com/quiz/how-well-do-you-know-the-us-states
There are 50 American states, and despite their political union, each has its own culture, history and character. Heck, they even have different names for carbonated beverages! Do you want a soda, a soft drink, pop or coke? See how well you know this diverse country!
How the Environment Has Changed Since the First Earth Day 51 Years Ago
It's been 51 years since the first Earth Day, and while progress has been made in some areas, humanity still has had a major impact on the planet.