Whitby, North Yorkshire, United Kingdom: Aerial view travelling over ruins of Whitby Abbey towards Whitby harbour on bleak day.

Bamburgh, Northumberland, United Kingdom: Aerial view travelling along coastline showing rough waves of the North Sea breaking onto shore on bleak day.

Cleveland, United Kingdom: Aerial view travelling over large rocky hill with white structure on top amidst wide expanse of North Yorkshire moorland on bleak day.

Whitby, North Yorkshire, United Kingdom: Aerial view travelling over harbour and houses of Whitby fishing town then over ruins of Whitby Abbey on bleak day.

Blyth Harbour Wind Farm, Northumberland, United Kingdom: Aerial view travelling over rotating blades of line of wind turbines surrounded by rough sea on bleak day.

Bamburgh, Northumberland, United Kingdom: Aerial view travelling towards and over ruins of Dunstanburgh Castle on bleak day.

Bamburgh, Northumberland, United, Kingdom: Aerial view travelling along coastline showing rough waves of the North Sea breaking onto shore on bleak day.

Silhouette of factory structure against dramatic sky with clouds moving past

Close view of smoke coming out of top of industrial chimney, next to tower block against orange sky

Didcot Power Station, Oxford, England: Three steam columns rise from the power station's cooling towers, camera zooms out to reveal many white steam columns rising to the sky.

Close view of tops of two factory chimneys belching and puffing steady stream of smoke upwards against cloudy sky

Airview slowly travelling over solitary piece of ice in expanse of water in sea in Antarctica, larger ice floes can be seen in distance

Teesdale, The Pennines, United Kingdom: Aerial view travelling along river lined with trees and over the High Force waterfall amidst moorland landscape of Teesdale.

General view of industrial buildings on London skyline seen through smog, one large chimney is seen against cloudy and foggy haze with some smaller chimneys in foreground emitting smoke

General view of small weather station building with large satellite dish and telegraph poles along horizon of snowy Arctic landscape, with bright almost starburst sun shining in sky and small ridges of snow in foreground

North Yorkshire, United Kingdom: Aerial view travelling over ruins of historic monastery called Fountains Abbey.

Slow tracking shot past pieces of broken ice floating on the sea in Antarctica with expanse of water in the foreground and mountains in background on cloudy day

Large industrial chimney in smoggy surroundings in between two tower blocks

Close view of Arctic explorer Jim McNeill carrying out environmental tests at the Canadian Arctic - shows close view of McNeill's hands in protective clothing turning large hand drill then camera pans up to show his face

Teesdale, Yorkshire Dales, United Kingdom: Aerial view travelling over the mossy green expanse of rough moorland of Teesdale.

Close view of stream of black smoke puffing and belching upwards

View of empty police cell in police station, room contains a bed and toilet, cell door then slams shut

Close view of tops of two factory chimneys, one belching a stream of black smoke upwards

Budapest, Hungary: Sequence of heavy traffic on motorway in Budapest. High shots over a multi-lane motorway with slow moving traffic, and a low angle shot of cars driving past.

General view of area of the Yellow River in northern China with broken ice floes on its surface that have melted due to rising temperatures

Stationary view of three cooling towers in a line at power station with smoke coming out of chimneys against cloudy sky , barbed wire fence seen in foreground

Sequence of two shots showing rows of tall smoking chimneys seen faintly through smog and white smoke

Hull, UK: General view of the gently glistening waters of the River Humber with concrete barrier in the foreground and ominous dark clouds in the distance.

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

General view of line of factory chimneys in silhouette belching black smoke against partially clear sky at sunset

Close view of top of factory chimney belching brown/black smoke with poles and wires crossing the screen in silhouette

General view of factory chimneys in silhouette belching black smoke against yellow sky at sunset

Budapest, Hungary: Sequence of heavy traffic on motorway in Budapest. Cars driving slowly in a queue, a sign warns of congestion and exhaust fumes coming out from an exhaust pipe of a car.

Two shots showing silhouette of factory structure against dramatic sky with clouds moving past

General view of Weather Station buildings and telegraph poles along distance on horizon in desolate snowy Arctic landscape as truck travels towards and past camera along road

Two shots showing area of the Yellow River in northern China with broken ice floes on its surface that have melted due to rising temperatures

Close view of tops of two chimneys belching smoke with poles and wires crossing factory structure in silhouette

Single smoking factory chimney seen on the horizon in the distance with trail of black smoke emanating over darkened skyline of town rooftops, the smoke passes over bright sun