North Pole was melted in 2000.
The Top of the World
" August 2000, a Russian icebreaker, the Yamal, took a group of environmental scientists on an excursion into the Arctic Ocean. When they got to the North Pole they were greeted by an expanse of open water, photographs of which became the subject of sensationalist reporting in the media.
Among the scientists on the cruise was Dr. James McCarthy, an oceanographer, director of the Museum of Comparative Zoology at Harvard University and a lead author for the IPCC. "It was totally unexpected," he said in a report to the media. Another scientist aboard, Dr. Malcolm C. McKenna, a paleontologist at the American Museum of Natural History, remarked "I don't know if anybody in history ever got to 90 degrees north to be greeted by water, not ice."
"The last time scientists can be certain the pole was awash in water was more than 50 million years ago." proclaimed the New York Times in an article entitled `The North Pole is melting' (August 19, 2000). "
Arctic Temperatures influence the world's weather:
Arctic Climate Research: North Pole Environmental Observatory
NY Times found scietists to say volcanos are not melting the North Pole:
Fire Under North Pole Ice - More Views - Dot Earth - Climate Change and Sustainability - New York Times Blog
..