• February 16, 2005  

    The Kyoto Treaty, signed in 1997 to combat global warming, went into effect Wednesday. Gwen Ifill leads a discussion on the newly enacted treaty and the U.S. decision not to participate. Continue reading

  • February 16, 2005  

    Scientists around the world are looking to coral reefs for the next big medical breakthrough. Correspondent Betty Ann Bowser explores the potential of these “rainforests of the sea” to provide the raw materials for life-saving drugs in the second of a two-part series on coral reefs. Continue reading

  • February 1, 2005  

    Some scientists are concerned that overfishing, pollution and global warming are killing parts of the world’s coral reefs. Correspondent Betty Ann Bowser explores what is being done to save the reefs in part one of a two-part series. Continue reading

  • January 25, 2005  

    Kenyan environmentalist Wangari Maathai, the first African woman to win a Nobel Peace Prize, sits down with Jeffrey Brown about her ecology work and social activism. Continue reading

  • December 23, 2004  

    President Bush has announced new regulations that loosen the control and governance of the 155 national forests in the U.S. Experts discuss how the new rules will affect the management and protection of national forests. Continue reading

  • November 25, 2004  

    Tom Bearden from the NewsHour’s Science Unit explores the massive effort to bring the Florida Everglades back to health. The NewsHour Science Unit is funded, in part, by a grant from the National Science Foundation. Continue reading

  • November 8, 2004  

    Results of a four-year study released this week by a team of 300 scientists show the Arctic is warming at twice the global average rate. Tom Bearden reports on the science of the Arctic. Continue reading

  • October 22, 2004   BY Admin 

    Russia’s state Duma on Friday ratified the Kyoto Protocol, which aims to fight global warming, giving the global pact a good chance of being enacted and boosting Russia’s chance at joining the World Trade Organization. Continue reading

  • October 8, 2004   BY Admin 

    The culmination of a week-long flurry of Nobel prize awards was Friday’s announcement of Professor Wangari Maathai, an environmental activist from Kenya, as the Nobel Peace Prize winner. Continue reading

  • September 7, 2004  

    Air pollution is difficult to track and prevent because plumes of impurities that originate in one country can drift half a world away, ultimately affecting the climate and human health on different continents. Betty Ann Bowser looks at global efforts to overcome geopolitical hurdles in clearing the air. Continue reading