Suchergebnis

1. 350 ppm CO2 is economically not only feasible but necessary

   Kategorie: Inhalt / Erneuerbare Energien / 350 ppm CO2 is economically not only feasible but necessary

   Amid a growing call for reducing atmospheric concentrations of CO2 to 350 parts per million, a group of economists maintains that striving to meet that target is a smart investment — and the best insurance ... Mittwoch, 21. Oktober 2009

2. Solar Power from space: Moving beyond science fiction

   Kategorie: Inhalt / Cleantech / Solar Power from space: Moving beyond science fiction

   For more than 40 years, scientists have dreamed of collecting the sun’s energy in space and beaming it back to Earth. Now, a host of technological advances, coupled with interest from the U.S. military, ... Montag, 14. September 2009

3. Strategies to address global warming

   Kategorie: Inhalt / Nachhaltigkeit und Klima / Strategies to address global warming

   ... safe level of carbon dioxide in the long run is no more than 350 ppm. The optimum CO2 level to support civilization may be less than 350 ppm, but more precise knowledge is not needed immediately for the ... Mittwoch, 15. Juli 2009

4. How Can We Avert Dangerous Climate Change?

   Kategorie: Inhalt / Nachhaltigkeit und Klima / How Can We Avert Dangerous Climate Change?

   Reprint from James Hansen; dieser Artikel wird noch ins Deutsche übersetzt. Recent analyses indicate that the amount of atmospheric CO2 required to cause dangerous climate change is at most 450 ppm, ... Freitag, 18. Januar 2008