Global Warming
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Earth's climate has always varied, but it is now changing more rapidly than at any other time in recent centuries. The climate is very complex, and many factors play important roles in determining how it changes.
Why is the climate changing? Could Earth be getting warmer by itself? Are people doing things that make the climate warmer?
Award-winning science writer Seymour Simon teams up with the Smithsonian Institution to give you a full-color photographic introduction to the causes and effects of global warming and climate change.
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Author Extras
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Penguins
Penguins certainly are a different bird! They spend seventy-five percent of their lives in water and they can′t even fly! Penguins are classified as birds because they have feathers. So explore a penguin′s world by finding out how they can swim so fast, what they eat, and...
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Wolves
Wolves are much more than big, bad animals that prey on other animals. Did you know that wolves are like dogs—they are loyal, affectionate, and highly intelligent. live in packs—or families—led by the strongest female and male. are friendly with one another: They play games,...
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Gorillas
Classic movies show giant gorillas scaling tall buildings and swatting planes from the sky, but actual gorillas are gentle social animals that live together in family groups like humans. In fact, gorillas are one of the closest genetic matches to people. And just like humans, gorillas can shriek...
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