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so it's completely mess-free
Author(s): Alan Jefferis
This shows just how big the solar system is
Nelson is very frightened
Natalie discovers that things are worse than she thought: now she's not even cool enough for her best friend
GLOBAL ISSUES: CLIMATE CHANGE(BELOW-LEVEL) SPANISH:GLB ISS: Product Form:Paperback / softback so it's completely mess-freeAuthor(s): NATIONAL GEOGRAPHIC According to most scientists, Earth's atmosphere has warmed by about 1. 4 degrees Fahrenheit in the past 100 years. The result has been melting glaciers, rising sea levels, and more extreme weather events. Some people say that current climate change is part of the natural cycle of changes on Earth. Many scientists, however, think that Earth's climate is changing because of increased greenhouse gases in the atmosphere.