Can we meet today's energy challenges with clean, cheap, renewable sources of energy? Yes! And one of the solutions is right under our feet. Using Earth's Underground Heat uses clear, simple text to explain how people around the world are harnessing geothermal heat to meet our 21st-century energy needs in agriculture, industry, and residential heating. Kids will also discover ways they can help make their planet greener.

Young readers learn all about pollution and how to protect earth with Big Bird and his Sesame Street friends. Keep water clean, pick up litter, and recycle to help stop pollution. How can you be kind to Earth? Interior paper made with 30 percent recycled post-consumer waste fibers.

Oscar the Grouch knows a lot about trash, including how to reuse it! Read along as Oscar and friends show young readers that reducing, reusing, and recycling lessens their impact on the planet. Learn how to turn trash into treasure, like making old bottle caps into artwork. We can help Earth! Interior paper made with 30 percent recycled post-consumer waste fibers.

Elmo and Abby take on trash in this friendly guide that teaches young readers about how litter impacts earth. Practical tips and a friendly Sesame Street approach encourage readers to take action against litter. How can you be kind to Earth? Interior paper made with 30 percent recycled post-consumer waste fibers.