Committed to PEOPLE'S RIGHT TO KNOW Vol. 5 Num 1013 Sat. April 07, 2007       International Global warming threatens natural wonders A file photo taken on November 16, 2006 shows a helicopter landing on the northernmost iceberg off Dunedin. Up to 30 percent of animal and plant species will be vulnerable to extinction if global temperatures rise by 1.5-2.5 Celcius (2.7 F to 4.5 F), UN climate experts said in a key report in Brussels yesterday. PHOTO: AFP