New York City, USA: Close up view of emtional New York City firemen sitting having a break from rescue work following September 11 World Trade Centre attack.

Oklahoma, USA: A powerful tornado tearing through a field with dirt spiralling around the tornado column.

General view of large iceberg, part of ice cliff breaks off and falls into water (calving) in Antarctica

Zambia: Aerial shots of flooded landscape seen through clouds.

Aerial shot over brushland in New Zealand being consumed by a vibrant orange bushfire.

Sequence of shots showing a tornado swirling and spiralling across the sea, stirring up water off Limasol in Greece

Row of ten pound notes (�‚£10) burning in London Treasury furnace, the words 'Bank of England' and the �‚£10 denomination can be clearly seen, some banknotes have a hole punched into them

Texas, USA: A large tornado forming with lots of dust swirling ominously between the tornado cloud and ground.

Wide shot of white smoke rising out of factory chimneys with hillside in the background.

Texas, USA: Black tornado clouds gathering in pink sky, a tornado vortice gathers and disappears.

Sequence of shots showing 'Stop' traffic sign blowing in wind and roof of motel balcony being blown down during Hurricane Georges in Florida, America.

Manitoba, Canada: A large black tornado column fiercely rotating over a field.

MS of a pylon in the foreground with industrial complex in the background churning out smoke.

Close view of fire burning amongst trees in forest seen through heat haze

Aerial shot passing over large deforested area in the Amazon rainforest in Brazil, with white smoke rising from burning trees. Small fires and single trees can be seen through the clouds of smoke

Kansas, USA: A white tornado column reaching to the ground. Camera zooms in as the tornado hits a dwelling behind trees and debris flies violently in the rotating air.

Aerial shot above a logging road and green conifer-covered mountains. Large areas of sparsity and exposed earth where trees have been cut down.

White van in middle of Californian desert. Suddenly it explodes into a big flame and as the flames clear, thick dark clouds of smoke appear and bits from the van fly in slow motion through the air, including the van's license plate.

Virunga National Park, Zaire - Medium shot of several men in a forest chopping trees with axes and machetes.

Manitoba, Canada: A massive black tornado column rotating over a field with dust and debris swirling in the powerful winds.

Manitoba, Canada: A large tornado with dark clouds rotating powerfully.

Manitoba, Canada: Zoom in toward a massive black tornado. Huge swirl of dust and air rotates over a field ominously.

Close view of part of iceberg breaking off and falling into sea (calving), causing splashing and spray in fjord in Hinlopen

Piles of Bank of England ten pound (�‚£10) notes burning in London Treasury furnace as orange flames engulf money, then image blurs to show out of focus flames

Medium view of part of iceberg falling off and crashing into sea (calving) causing splash in Antarctica

Manitoba, Canada: A huge black tornado cloud over field, the camera zooms in to show the tornado's three vortices fiercely swirling on the field.

Mid shot of a factory chimney seen through clouds of thick, white smoke. Zoom out to reveal several chimneys and factory buildings.

A Dirigible (airship) catches fires in midair and plummets to earth.

Water swirls as it goes down a whirlpool in the street.

Manitoba, Canada: A massive black tornado column over a field with debris flying in the wind.

Wide shot of hills and dark clouds with pond in foreground. Camera pans to reveal factories and chimney smokestacks churning out pollution.

Manitoba, Canada: A huge black tornado with three vortices swirling. The vortices join into one huge tornado and then split into separate vortices again.

Close view of piles of Bank of England ten pound (�‚£10) banknotes burning amongst flames in London furnace, drawing of Charles Darwin seen on back of notes

Oklahoma, USA: A huge tornado with a large debris cloud swirling around it seen from a reversing car.

A greenhouse structure collapses amongst the wreckage of previously demolished glasshouses.

Medium shot across a hilltop, showing devastation left behing by intense tree logging. Road on hillside and logged trees lying on ground in foreground.

Close view of part of iceberg falling of and crashing into sea (calving) causing splash in Antarctica

Aerial shot over a clearing in a rainforest as a result of intense logging. The exposed earth is held in great contrast with surrounding lush, green vegetation.

Close up of a sign on a beach near San Francisco Bay warning about the dangers of water sewerage. Sign reads 'Warning. Sweage discharge. Do no use beach or water' in red letters.

Oklahoma, USA: A fierce tornado tearing through a field lifting up debris and vegetation which swirls around the column of the tornado.

Close up of light glistening iridescently off an oil slick on water in Alaska.

A blue sky and white sun peek through shrouding white smoke rising from chimney smokestacks. Camera pans to reveal urban landscape on a sunny day.

General view of large iceberg as part of ice cliff breaks off and falls into water (calving) in Antarctica

Wide shot of silhouetted factory chimneys churning out grey smoke into sky, with clouds, smoke and bursts of sunshine, in Quebec.

Manitoba, Canada: A massive black tornado column fiercely rotating over a field.

Manitoba, Canada: A massive black tornado swirling over a field with rain and hail falling.

Sequence of shots showing flooded street with traffic signs, signals and trees blowing in violent wind caused by Hurricane Wilma in Florida, America.

South Africa: Mid shot of a Chinese Tiger walking towards the camera, with bushes and vegetation surrounding. Mid close shot of the tiger lying amongst vegetation and yawning showing a large mouth, big tongue and teeth.

Clouds of smoke billow from a furnace in a smelting operation in Norilsk, Russia. Sunshine and blue sky in background.

Medium close up of a chainsaw slicing through the trunk of a tree in French Guiana.