REGIONAL SLIDES POLAR REGION • Arctic Sea Ice • Breidamerkurjökull, Iceland • Hubbard Glacier, United States • Prudhoe Bay, United States • Kolka Glacier, Russia • Filchner Ice Shelf, Antarctica • Ninnis Glacier, Antarctica • Drygalski Ice Tongue, Antarctica • Mt. Kilimanjaro, Tanzania • Antarctic Ozone Hole POLAR REGION ARCTIC • The core of the Arctic, in the north, is the Arctic Ocean. • The Arctic Ocean has many thousands of big and small islands and the lands surrounding the Arctic Ocean supports a great variety of plants. ANTARCTIC • The Antarctic, in the south, is an isolated continent surrounding the South Pole. Most of Antarctica's land lies beneath ice and snow almost two km thick. • It has high mountains and glaciers. Dramatic changes in Arctic Sea Ice Imagine an ice-free Arctic Shrinking Breidamerkurjökull Glacier Iceland • 1973-2000: Images show glacier has receded and the glacial lake at its tip has enlarged Ice dam in America: the Hubbard Glacier North Angangueo United States • 1985show –Hubbard • 1986: Images Glacier Degradation of forest area • 1986 –Hubbard Glacier blocks Russell • 2001: Between Fjord 1984 and 1999, 38 per cent of forests were –Hubbard • 2002 degraded Glacier blocks Russell Fjord again •2003 – Glacier has retreated Hubbard Glacier advances North America: Angangueo United States • 1986: Images show Degradation of forest area • 2001: Between 1984 and 1999, 38 per cent of forests were degraded 10 Aug 2002 14 Aug 2002 Sprawl of oil fields in Prudhoe Bay United States • 1974-1999: After the discovery of oil fields in 1968, the Bay has undergone dramatic changes Collapse of Kolka Glacier Russia Around Mt. Kazbek, a dormant volcano glaciers intermittently collapse, burying the landscape below 20 September 2002: Kolka shattered, setting off a massive avalanche of ice, snow and rocks Extent of disaster in Kolka Glacier Russia This before and after image shows the vast extent of disaster following the collapse Breaking Off Filchner Ice Shelf Antarctica Filchner Ice Shelf is the largest ice shelf on the planet In 1986 the front edge of Ice Shelf broke off into three enormous icebergs Calving of Ninnis Glacier Antarctica 22 January 2000: The Ninnis Glacier Tongue soon after the initial calving 5 February 2002: Iceberg split into two sections and started moving away from Ninnis Glacier Cracks on Drygalski Ice Tongue Antarctica The ice tongue was discovered in 1902 21 February 2005: Drygalski calved an iceberg Image shows cracks formed by time and ocean currents Disappearing Icecap of Mt. Kilimanjaro, Tanzania Africa’s highest mountain with a forest belt having rich diversity of ecosystems • 1976: Glaciers covered most of the summit • 2000: The glaciers had receded alarmingly Growth of the Antarctic Ozone Hole 1979 1988 1982 1984 1986 Darkest blue areas represent regions of maximum ozone depletion 1990 1999 1992 1997 1994 2004 “Good” Ozone vs. “Bad” Ozone • Scientist observed positive changes in the ozone layer • “Bad” ozone is believed to be the associated with smog and poor air quality • Earth's atmosphere appears to be recovering from losses of "good" ozone in the upper reaches of the atmosphere POLAR REGION One Planet Many People: Atlas of Our Changing Environment Thank You! Free Download: www.na.unep.net Purchase: www.Earthprint.com