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Reviews:
<strong>"Highly recommended." -- Video Librarian</strong> <strong>"...dramatic and thought-provoking...The videography and narration are excellent, the content is engaging, and the segments featuring scientists are superb." -- School Library Journal<strong>
Dimming The Sun
Price: $39.95
Format: DVD » Add to Cart » Request Preview Access Catalogue Number: WG0157DV ISBN number: 1-593755-67-8 Producer: WGBH Subject: Science Language: ENGLISH Grade Level: 9 - Post Secondary Country of Origin: U.S. Copyright Year: 2006 Running Time: 56 Rights: PPR In a stunning investigation, NOVA reports on the discovery that the amount of sunlight reaching Earth is dropping--a big surprise given international concern over global warming. Less sunlight might hardly seem to matter when our planet is stewing in greenhouse gases, but the discovery of global dimming has led some scientists to claim that the earth's climate is heating up much faster than most previous predictions. Scientists have long known that increasing air pollution endangers our respiratory health. But they had not fully considered the impact of pollution on the amount of sunlight reaching Earth. Some scientists now believe that global dimming may disturb rainfall patterns and contribute to severe droughts and famines. The good news is that, in some regions, pollution controls have slowed and possibly even halted global dimming during the last decade. The bad news--and the ironic twist in this story--is that without pollution, we will no longer have the cooling effects of global dimming. Instead, we may be confronted with the true power of global warming, which we may have seriously underestimated due to the dimming sun. <strong>Special DVD features include: materials and activities for educators; scene selections; closed captions; and described video for the visually impaired.</strong> |
Reviews:
<strong>"Highly recommended." -- Video Librarian</strong> <strong>"...dramatic and thought-provoking...The videography and narration are excellent, the content is engaging, and the segments featuring scientists are superb." -- School Library Journal<strong>
