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Are We Entering the Sixth Major Extinction on Earth?
science.howstuffworks.com/life/evolution/sixth-major-extinction.htm
A new global report says 1 million species are at risk of extinction - the greatest number in human history.
How CO2 Scrubbing Works
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CO2 scrubbing is one potential solution to reducing our emissions of carbon dioxide. Learn about CO2 scrubbing and find out what the most common processes are.
10 Top Biofuel Crops
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Could 'energy crops' really be the end to our addiction to fossil fuels? Read about the 10 top biofuel crops at HowStuffWorks.
10 Countries With Perfect Climates
science.howstuffworks.com/nature/climate-weather/atmospheric/10-countries-with-perfect-climates.htm
A perfect climate means different things to different people. These 10 countries span the globe and offer a wide range of climates to satisfy any taste -- hot, cold or in-between.
How Hydrogen Cars Work
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Hydrogen cars operate differently than conventional cars. Learn more about hydrogen cars at HowStuffWorks.
How Controlled Burns Work
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How effective is fighting a wildfire with controlled fire?
5 Similarities Between PRT and Cars
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What are the similarities between PRT and cars? Keep reading to discover 5 Similarities Between PRT and Cars.
Inside '10,000 BC'
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'10,000 BC' is a new prehistoric movie from famed director Roland Emmerich. Learn about the making of the movie '10,000 BC.'
10 Earth Day Activities to Celebrate Our Planet
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Earth Day is the ideal time of the year to form new eco-oriented habits. Here are 10 things you can do to celebrate our planet all year long.
How Does Photosynthesis Work?
science.howstuffworks.com/environmental/green-tech/energy-production/artificial-photosynthesis.htm
Artificial photosynthesis allows us to replicate one of nature's miracles. Visit HowStuffWorks to learn all about artificial photosynthesis.