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Global warming has increased dramatically during the last century at an unnatural rate, which makes specialists believe that humans contribute to the real cause of global warming today. Many activities humans are involved in – from burning fossil fuels for energy to massive deforestation – are contributing to the atmospheric warming at an alarming rate. Experts believe that in the future human induced damage will cause severe problems in the distribution of species … More >>
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Planet Earth is warming faster now than at any other time in the past 1,000 years, and global warming may be the greatest threat to ever face humanity. Counteracting it is our greatest challenge. Mark Maslin explains what global warming is and presents incontrovertible evidence that it is really happening. He examines the impact that climate change will have on health, agriculture, water resources, coastal regions, forests, and wildlife. He also looks at the effor… More >>
» Read more: Global Warming: Causes, Effects, and the Future
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Experience the American Journey through our country’s visual heritage in this historical recording provided by the National Archives of the United States.PAUL DUKE, PBS, INTERVIEWS A GROUP OF EXPERTS AND LEGISLATORS ABOUT PRESIDENT CARTER’S PLAN AS PRESENTED IN THE PRESIDENT’S ADDRESS TO CONGRESS ON APRIL 20. INCLUDES EXCERPTS FROM THIS ADDRESS AND THE PRESIDENTIAL PRESS CONFERENCE OF APRIL 22. GUESTS INCLUDE DR. GLENN SEABORG, NOBEL LAUREATE IN CHEMISTRY AND FORMER HEAD OF… More >>
» Read more: The Energy Crisis – President Carter’s Plan, 1977