[youtube=350,300]hdPyJLyIM0o
Vedi:
http://www.nbcwashington.com/weather/stories/Bob-Ryan-Global-Change-Series.html
http://www.nbcwashington.com/weather/stories/Global-Warming-Part-2.html
http://www.nbcwashington.com/weather/stories/Bob-Ryan-on-Global-Warming-Part-3.html
http://www.nbcwashington.com/weather/stories/Bob-Ryan-on-Global-Warming-Part-4.html
http://www.nbcwashington.com/weather/stories/Bob-Ryan-on-Global-Warming-Part-5.html
http://www.nbcwashington.com/weather/stories/Bob-Ryan-on-Global-Warming-Part-6.html