General view of igniter held by gas hob lighting blue flame which then burns and flickers

Aerial view over a raging forest fire. Lots of smoke rising to the sky with burning ground glowing in orange and red colours as the flames destroy forest.

Barrow Island, Australia. Waste gas burns in bright flames in the foreground while a 'nodding donkey' oil pump operates in the background.

Barrow Island, Australia. A silhouetted 'nodding donkey' oil pump operates in the background while waste gas burns in a bright flame in the foreground throwing a visible haze effect into the air.

Barrow Island, Australia. A silhouetted 'nodding donkey' oil pump operates in the background while waste gas burns in a bright flame in the foreground throwing a visible haze effect into the air.

Greece: Various night shots of forest fires burning on a hilside.

Barrow Island, Australia. A silhouetted 'nodding donkey' oil pump operates in the background while waste gas burns in a bright flame in the foreground throwing a visible haze effect into the air.

Close up view of flames and smoke rising from a forest fire.

Orange flames erupting against black night sky as a forest fire rages on hills.

Barrow Island, Australia. A 'nodding donkey' oil pump silhouetted against the setting sun. A golden glow fills the frame.

Manchester, England: Worker in Thomas Storey factory welding pieces of metal machinery in manufacturing process

Barrow Island, Australia. A 'nodding donkey' oil pump silhouetted against the setting sun. Clouds creep across the sun's face.

Barrow Island, Australia. A 'nodding donkey' oil pump silhouetted against the setting sun. Clouds creep across the sun's face.

Close up view of a raging yellow and orange fire with flames rising against black smoke in the background.

Greece: Various shots of forest fires in Greece at night.

Very close view of part of blue gas flame emanating from gas hob

Orange flames engulfing vegetation on hillside with orange smoke rising in the black night sky.

Mid-view of factory chimney giving out bursts of orange flames against cloudy sky

Various close ups of gas hobs being ignited, with blue coloured flames emanating.

Yellow flames rising against black night sky as forest fires rage on hillside.

Top shot of hands outstretched around small camp fire at night, hands mostly seen in silhouette against yellow flames.

Bright yellow flames rise from hillside against black night sky.

Close view of blue gas flame emanating from gas hob with flickers of orange and pink