41. The depletion of the ozone layer started earlier and lasted longer than ever before, the WMO report said. 42. Strike probabilities associated with this advisory number can be found under afos header miaspfat3 and wmo header wtnt73 knhc. 43. The worst-affected area was over the North Pole region and north-central Siberia, WMO said. 44. WMO 's summary of the climate in 2001 said weather extremes also were on the rise this year.45. Langlo held leading positions at the secretariat of the World Meteorological Organization ( WMO ) from 1952 to 1975. 46. In the next few weeks or months, the phenomenon could spread across the entire region, the WMO said. 47. The upward trend may continue for another two months, WMO said in its regular update on the climate pattern. 48. "The rhythm of temperature increases is accelerating, " said WMO deputy secretary-general Michel Jarraud. 49. Until the 1980s EU, NASA, NAS, UNEP, WMO and the British government had dissenting scientific reports. 50. An international program under World Meteorological Organization ( WMO ) marine auspices, the VOS has 49 countries as participants.