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Why Is the Sky Blue?
science.howstuffworks.com/nature/climate-weather/atmospheric/sky.htm
We've all probably looked up and wondered why the sky is blue instead of, say, brown. The sky is blue because of the way Earth's atmosphere scatters light from the sun.
Why Is the Thwaites Glacier Called the 'Doomsday Glacier'?
science.howstuffworks.com/environmental/earth/geology/thwaites-glacier.htm
Scientists are concerned that the Thwaites Glacier is melting at a rapid pace, though some don't love the name "Doomsday Glacier." What does the rapid melt of this huge glacier mean for the future of our planet?
Why Is the Tropic of Cancer Important?
science.howstuffworks.com/environmental/earth/geophysics/tropic-of-cancer.htm
You've probably heard of the Tropics of Cancer and Capricorn, but do you know the difference?
Why Is the Tropic of Capricorn Important?
science.howstuffworks.com/environmental/earth/geophysics/tropic-of-capricorn.htm
You've probably heard of the Tropics of Capricorn and Cancer, but do you know the difference?
Why It Feels So Good To Be Scared
science.howstuffworks.com/life/inside-the-mind/emotions/why-love-to-be-scared.htm
It's already a scary world. Why do we seek to experience more fear?
Why July's Full Moon Is Known as the Buck Moon
science.howstuffworks.com/buck-moon.htm
And this month's buck moon is extra-special because it is a supermoon!
Why Photosynthesis is Important
science.howstuffworks.com/science-vs-myth/what-if/what-if-photosynthesis-stopped.htm
Remember learning about photosynthesis when you were a kid? Let's pretend for a moment that this vital process could somehow permanently stop. How tough would it be to continue to live on this Earth?
Why Smoking Rates in the Military Are So High
science.howstuffworks.com/why-smoking-rates-in-military-are-so-high.htm
New evidence shows that Big Tobacco specifically targeted U.S soldiers, because they were "less educated" among other reasons.
Why Socotra Is Known as the 'Galapagos of the Indian Ocean'
science.howstuffworks.com/environmental/conservation/issues/socotra-yemen.htm
This alien-looking archipelago off the coast of Yemen is teeming with plants and animals. Many species here are threatened or endangered. Can they be saved?
Why Solar Geoengineering Should be Part of the Climate Crisis Solution
science.howstuffworks.com/environmental/green-tech/remediation/solar-geoengineering.htm
The controversial technology of reflecting sunlight away from the planet could help blunt the worst impacts of climate change. Harvard University climate scientist David Keith weighs in.