Ashley Cooper / People displaced by flooding at Chiteskesa refugee camp, cooking on a fuel efficient stove. near Mulanje, Malawi. March 2015.

Ashley Cooper / Methane, extracted from an old landfill site on Walney Island, to power a biogas generator producing green electricity, Cumbria, UK, with the Ormonde offshore wind farm in the background. February 201...

Ashley Cooper / Methane, extracted from an old landfill site on Walney Island, to power a biogas generator producing green electricity, Cumbria, UK, with the Ormonde offshore wind farm in the background. February 201...

Ashley Cooper / Methane, extracted from an old landfill site on Walney Island, to power a biogas generator producing green electricity, Cumbria, UK. February 2013.

Ashley Cooper / Ashram's bio-gas plant, that is fed with food waste and manure and fuels the kitchens and the Ashram's vehicles. Muni Seva Ashram,Goraj, near Vadodara, India,

Ashley Cooper / Ashram's bio-gas plant, that is fed with food waste and manure and fuels the kitchens and the Ashram's vehicles. Muni Seva Ashram in Goraj, near Vadodara, India. December 2013.

Ashley Cooper / Ashram's bio-gas plant, that is fed with food waste and manure and fuels the kitchens and the Ashram's vehicles. Muni Seva Ashram in Goraj, near Vadodara, India. December 2013.

Ashley Cooper / Ashram's bio-gas plant, that is fed with food waste and manure and fuels the kitchens and the Ashram's vehicles. Muni Seva Ashram in Goraj, near Vadodara, India. December 2013.

Ashley Cooper / AlgaeLink, an algae growing system used to produce ethanol and biodiesel oil from algae. This is more efficient than from growing traditional plant oil crops as it does not take as much space. Chamoni...

Ashley Cooper / Biodiesel production in Chamonix, French Alps, France, October 2007.

Ashley Cooper / AlgaeLink, an algae growing system used to produce ethanol and biodiesel oil from algae. This is more efficient than from growing traditional plant oil crops as it does not take as much space. Chamoni...

Ashley Cooper / AlgaeLink, an algae growing system used to produce ethanol and biodiesel oil from algae. This is more efficient than from growing traditional plant oil crops as it does not take as much space. Chamoni...

Ashley Cooper / E.ON's biofuel power station in Lockerbie, Scotland with Willow trees (Salix sp,) planted as a biofuel crop. The power station is fuelled 100 by wood sourced from local woodlands and generates enough...

Ashley Cooper / E.ON biofuel power station in Lockerbie Scotland with timber supplies/ The power station is fuelled by wood sourced from local woodlands and generates enough electricity to supply 70 000 houses. Scotl...

Ashley Cooper / Willow trees (Salix sp) planted as a biofuel crop at E.ON biofuel power station, Lockerbie, Scotland. The power station is fuelled by wood sourced from local woodlands and generates enough electricit...

Ashley Cooper / Bio fuel petrol station in Ecija, Andalucia, Spain. May 2011.

Ashley Cooper / Bio fuel petrol station in Ecija, Andalucia, Spain. May 2011.

Ashley Cooper / Bio fuel petrol station in Ecija, Andalucia, Spain. May 2011.

Ashley Cooper / Biofuel boiler in the grounds of the Langdale Estate, Lake District. Since the installation of the biofuel boiler, which replaced an LPG gas boiler, the company has saved 30,000 a year in running cost...

Ashley Cooper / Woodchip hopper for a biofuel boiler in the grounds of the Langdale Estate, Lake District,Since the installation of the biofuel boiler, which replaced an LPG gas boiler, the company has saved 30,000 a...

Ashley Cooper / Elephant grass (Pennisetum purpureum) grown for biofuel in Chapel Amble, Cornwall, England, UK. August.

Ashley Cooper / Elephant grass (Pennisetum purpureum) grown for biofuel in Chapel Amble, Cornwall, England, UK. August.

Ashley Cooper / Elephant grass (Pennisetum purpureum) grown for biofuel in Chapel Amble, Cornwall, England, UK. August.

Ashley Cooper / Peat cutting for fuel on the Isle of Lewis near Stornoway, Outer Hebrides, Scotland, UK. 2016.

Ashley Cooper / Woman subsistence farmer cooking on a traditional clay oven, using rice stalks as biofuel in the Sunderbans, Ganges Delta, India. 2013.

Ashley Cooper / Woman subsistence farmer cooking on a traditional clay oven, using rice stalks as biofuel in the Sunderbans, Ganges Delta, India. December 2013.

Ashley Cooper / A woman subsistence farmer cooking on a traditional clay oven, using rice stalks as biofuel in the Sunderbans, Ganges Delta, India. All parts of the rice crop are used, and the villager's life is ver...

Ashley Cooper / Cow dung pats drying out to be used as biofuel for traditional clay ovens by subsistence farmers in the Sunderbans, eastern India. December 2013.

Ashley Cooper / Woman cooking on a traditional clay oven, fuelled by biofuel (rice stalks) Sunderbans, Ganges Delta, Eastern India. December 2013.

Ashley Cooper / Woman cooking on a traditional clay oven, fuelled by biofuel (rice stalks) Sunderbans, Ganges Delta, Eastern India. December 2013.

Ashley Cooper / Dried cow dung to be used as biofuel on fires for cooking in Delhi, India, December 2013.

Ashley Cooper / Truck hauling freshly cut timber for biofuel in Grizedale forest, Lake District, England, UK, May 2013.

Ashley Cooper / A forwarder, a specialist machine for cutting timber for biofuel in Grizedale Forest, Lake District, England, UK

Ashley Cooper / Logs bound for a biofuel power station in Workington next to oil tanks in Workington port, Cumbria, UK, with a wind farm in the background.

Ashley Cooper / The new biofuel power plant at the Iggesund paper board manufacturer in Workington, Cumbria, UK with wind turbines behind. When commissioned the power station will fuel the plant as well as feeding po...

Ashley Cooper / Citronella eco logs made from recycled waste material.

Ashley Cooper / The Steven's Croft biofuel power station in Lockerbie, Scotland, UK, witha delivery of timber entering the site.

Ashley Cooper / The Steven's Croft biofuel power station in Lockerbie, Scotland, UK.

Ashley Cooper / The Steven's Croft biofuel power station in Lockerbie, Scotland, UK.

Ashley Cooper / Peat cutting near Broadford, Isle of Skye, Scotland, UK, February 2012.

Ashley Cooper / Bio fuel display at the Eden Project in Cornwall, England, UK, April 2007.

Ashley Cooper / Baling up brashings (dead branches) after timber harvesting on Longridge Fell, Clitheroe, Lancashire, UK, November 2007. The waste wood that would formally have been left to rot is now taken off to a...

Ashley Cooper / Log burner used to heat a house

Ashley Cooper / An AlgaeLink Algae growing system that is harvested to make ethanol and biodiesel Producing oil from algae in this way is much more efficient than from growing traditional plant oil crops like oil see...

Ashley Cooper / AlgaeLink, an algae growing system used to produce ethanol and biodiesel oil from algae. This is more efficient than from growing traditional plant oil crops as it does not take as much space. Chamoni...

Ashley Cooper / AlgaeLink, an algae growing system used to produce ethanol and biodiesel oil from algae. This is more efficient than from growing traditional plant oil crops as it does not take as much space. Chamoni...

Ashley Cooper / Maize (Zea mays) husks that are used as a renewable fuel to burn on household stoves, northern China, March 2009.

Ashley Cooper / Elderly woman carrying heavy load of firewood, Annapurna, Himalayas, Nepal. January 2013.

Ashley Cooper / Firewood in basket, Annapurna, Himalayas. Nepal, December 2012.

Ashley Cooper / Women carrying heavy loads of fire wood, Annapurna, Himalayas, Nepal, December 2012.

Ashley Cooper / Ratcliffe on Soar, a massive coal powered power station in Nottinghamshire, with field of oilseed rape in foreground, UK, May 2008.

Ashley Cooper / Drax power station in Yorkshire, the largest emitter of CO2 in Europe. Yorkshire, England, UK.

Ashley Cooper / Coal stock piles at Drax power station in Yorkshire, UK, which is the largest emitter of CO2 in Europe. Yorkshire, England, UK. August.

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda, November 2014.

Tom Gilks / Two children standing in front of Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye,...

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda, November 2014.

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda. November 2014.

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda, November 2014.

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda, November 2014.

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda, November 2014.

Tom Gilks / Kivuwatt biogas plant under construction. The plant will remove methane from the waters of Lake Kivu and power three genrators to produce 26MW of electricity. Kibuye, Rwanda, November 2014.

Juan Carlos Munoz / Warning sign to slow down, near woman standing by natural methane gas upwelling, with flags, Hula Valley, Israel, November 2014.

Tom Gilks / Jatropha (used for biofuel) growing on a farm, Tanzania.

Tom Gilks / Farmer standing in Jatropha plantation, holding Jatropha beans and bottle with Jatropha oil (used as a biofuel), Tanzania.

Tom Gilks / Hand holding Jatropha beans (used for making biofuel) next to Jatropha plant, Tanzania.

Tom Gilks / Farmer holding Jatropha beans (used for making biofuel) in a field of Jatropha plants, Tanzania.

Tom Gilks / Hand holding Jatropha beans (used for making biofuel) next to Jatropha plant, Tanzania.

Tom Gilks / Man pouring Jatropha biofuel from a bottle to fuel a milling machine, Tanzania.

Tom Gilks / Hands holding Jatropha beans, next to milling machine run on Jatropha biofuel, Tanzania.

Nick Upton / Elephant grass (Miscanthus giganteus) flowering, grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Nick Upton / Elephant grass (Miscanthus giganteus) standing and recently harvested, grown as an energy crop for use in biomass boilers, Willtshire, UK, March.

Nick Upton / Elephant grass (Miscanthus giganteus) standing and recently harvested, grown as an energy crop for use in biomass boilers, Willtshire, UK, March.

Nick Upton / Elephant grass (Miscanthus giganteus) flowering, grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Nick Upton / Elephant grass (Miscanthus giganteus) grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Nick Upton / Elephant grass (Miscanthus giganteus) flowerheads, grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Nick Upton / Elephant grass (Miscanthus giganteus) flowering, grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Nick Upton / Elephant grass (Miscanthus giganteus) recently harvested and baled, grown as an energy crop, with buildings heated by biomass boilers burning Miscanthus bales in the background, Willtshire, UK, March.

Nick Upton / Elephant grass (Miscanthus giganteus) grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Nick Upton / Elephant grass (Miscanthus giganteus) in flower, grown as an energy crop for use in biomass boilers, Willtshire, UK, December.

Pat Tuson / Shipping container with Bio Fuel Made Here printed on the doors, Hackney City Farm, London UK

David Tipling / A crop of {Jatropha curcas} plants, the nuts are used for high quality Biofuel

Dave Bevan / Savanna grass {Miscanthus sp} grown commercially for biofuel

Jose B. Ruiz / Stooks of harvested Giant reed {Arundo donax} Spain

Nigel Cattlin / Close up of Wheat (Triticumsp.) middlings, a by-product of flour milling that can be used for biofuel, green energy, animal livestock feed.