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 : Images show glacier has receded and the glacial lake at its tip has enlarged

North America: Angangueo 1986: Images show Degradation of forest area 2001: Between 1984 and 1999, 38 per cent of forests were degraded Ice dam in the Hubbard Glacier United States 1985 –Hubbard Glacier 1986 –Hubbard Glacier blocks Russell Fjord 2002 –Hubbard Glacier blocks Russell Fjord again 2003 – Glacier has retreated

North America: Angangueo 1986: Images show Degradation of forest area 2001: Between 1984 and 1999, 38 per cent of forests were degraded Hubbard Glacier advances United States 14 Aug Aug 2002

Sprawl of oil fields in Prudhoe Bay United States : 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

This before and after image shows the vast extent of disaster following the collapse Extent of disaster in Kolka Glacier Russia

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 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 Darkest blue areas represent regions of maximum ozone depletion

Earth's atmosphere appears to be recovering from losses of "good" ozone in the upper reaches of the atmosphere “Good” Ozone vs. “Bad” Ozone “Bad” ozone is believed to be the associated with smog and poor air quality Scientist observed positive changes in the ozone layer

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