Pan across a rocky stretch of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Green foliage clings to rocks in the foreground.

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

Italy: Large bright yellow burst of lava shooting up into the night sky as Mount Etna erupts.

Panoramic view across a rocky expanse of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Shadows hug the contours of the sun-soaked rock patterns. Green foliage lines the foreground.

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

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

Pan across a misty, shaded stretch of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Green foliage lines the rocks in the foreground.

Pan across a rocky stretch of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Green foliage lines the foreground.

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

Zoom out to a panoramic view of the mountainous terrain of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Light snow covers a rock outcrop in the foreground.

Panoramic view across a rocky stretch of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Shadows hug the contours of the sun-soaked rock patterns. Green foliage lines the foreground.

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.

Wide view across a rocky stretch of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Green foliage lines the foreground.

Night time. Several flashes of lightning silhouetting tree in foreground.

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

Zoom out to a panoramic view of the mountainous terrain of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Light snow covers a rock outcrop in the foreground.

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.

Hawaii, USA: Bright red lava flowing down the black face of a volcano at night. The main lava stream separates into several smaller streams in the distance.

Aerial track across the rocky terrain of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Shadows cling to the contours of the canyon's sun-drenched rock faces.

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.

Waves lapping against volcano edge. Steam rises from lava trailing into sea. Guatemala.

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

Zoom out to a panoramic view of the mountainous terrain of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. The Canyon is cast in a mixture of light and shade.

Pan across rocky peaks shaded by sunlight and shadow in the Grand Canyon in the Grand Canyon National Park, Arizona, USA.

Italy: Bright red and orange lava from Mount Etna shooting into night sky.

Hawaii, USA: Bright red lava flowing down the black face of a volcano at night.

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

Gombe National Park, Tanzania, Africa: Wide shot of full rainbow arcing over a lush, green forest against blue sky.

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

Slow left to right pan from a deep-shadowed ledge following the Colorado River snaking through the sun-drenched rock faces of the Grand Canyon in the Grand Canyon National Park, Arizona, USA.

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

Wide shot - Geyser ejecting a plume of steam and water in the foreground and snow-covered landscape in the background.

Right to left pan across the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Angular rock formations cast shadows across the contoured landscape.

Slow right to left pan from a deep-shadowed ledge following the Colorado River snaking through the sun-drenched rock faces of the Grand Canyon in the Grand Canyon National Park, Arizona, USA.

Pan across the contoured terrain of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. The Canyon is cast in a mixture of light and shade.

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.

Panoramic view across a rocky expanse of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Shadows hug the contours of the canyon's sun-soaked rock patterns.

Italy: Mount Etna erupting with bright red and orange lava shooting up into dark night sky.

Zoom out to a panoramic view of a rocky expanse of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Shadows hug the contours of the canyon's sun-soaked rock patterns.

Manitoba, Canada: Zoom towards a huge black tornado which has several vortices.

Kansas, USA: A tornado cloud fiercely rotating dust high above ground with debris flying in air. Camera zooms out to show the tornado as it tears through countryside.

Kansas, USA: A white tornado column ripping through countryside.

Pan across from sign bearing skull and crossbones reading: 'Danger Please Do Not Enter' to bubbling, muddy geyser. Rotorua, South Auckland, New Zealand.

Pan across a rocky stretch of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Arizona, USA. Green foliage lines the foreground.

Aerial track across the rocky terrain of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. Shadows cling to the contours of the canyon's sun-drenched rock faces.

Pan along from half-arc rainbow forming in mist rising from waterfall over to a rocky ravine face.

Grand Canyon National Park, Arizona, USA. Pan across a sun-drenched expanse of the Grand Canyon viewed from a high ledge partially obscured by deep shadows.

Pan across a rocky face of the Grand Canyon in the Grand Canyon National Park, Arizona, USA. The Canyon is cast in a mixture of light and shade.