Roger Powell / Red Squirrel (Sciurus vulgaris) feeding on nut. Lee Burn, Longframlington, Northumberland, UK, November.

Roger Powell / Red Squirrel (Sciurus vulgaris) on stump. Lee Burn, Longframlington, Northumberland, UK, November.

Roger Powell / Red Squirrel (Sciurus vulgaris) on stump. Lee Burn, Longframlington, Northumberland, UK, November.

Roger Powell / Red Squirrel (Sciurus vulgaris) feeding in profile. Lee Burn, Longframlington, Northumberland, UK, November.

Roger Powell / Grey Squirrel (Sciurus caronlinensis) feeding on nut. Lee Burn, Longframlington, Northumberland, UK, December.

Roger Powell / Red Squirrel (Sciurus vulgaris) on stump. Lee Burn, Longframlington, Northumberland, UK, November.

Roger Powell / Red Squirrel (Sciurus vulgaris) feeding on hazel nut on stump. Lee Burn, Longframlington, Northumberland, UK, November.

Roger Powell / Grey Squirrel (Sciurus caronlinensis) with only tail and a foot in view, fleeing. Lee Burn, Longframlington, Northumberland, UK, December.

Roger Powell / Grey Squirrel (Sciurus caronlinensis) on stump. Lee Burn, Longframlington, Northumberland, UK, December.

Jabruson / Slash and burn agricultural activity outside the town of Bayanga, ironically where headquarters for Dzanga-Ndoki National Park is located, Southern Central African Republic, March 2012. Forest cleara...

Ann & Steve Toon / Atlantic salmon (Salmo salar) smolt trap on the Kielder burn, Northumberland, UK, April 2012

Ann & Steve Toon / Atlantic salmon (Salmo salar) David Kirkland, left, and Richard Bond of the Kielder Salmon Centre recording data of smolts collected from the smolt trap on Kielder burn, Northumberland, UK, April 2012

Ann & Steve Toon / Atlantic salmon (Salmo salar) people measuring smolt collected from smolt trap on Kielder burn, Northumberland, UK, April 2012

Ann & Steve Toon / Atlantic salmon (Salmo salar) people collecting smolts from smolt trap on Kielder burn, Northumberland, UK, April 2012

Jack Dykinga / Mule deer (Odocoileus hemionus) in burnt forest, devastation of the 'Wallow Fire' with life returning after seasonal rain, Apache-Sitgreaves National Forest, Arizona, USA 2011

Pete Oxford / Gas burn-off stations along Napo River, Amazon, Ecuador

Pete Oxford / Prescribed burn in longleaf pine forest, The Orianne Indigo Snake Preserve, Telfair County, Georgia, USA

Mark Hamblin / 2020VISION / Woodland burn in autumn, Glen Affric, Highland, Scotland, UK, October 2010

Mark Hamblin / 2020VISION / Woodland burn in autumn, Glen Affric, Highland, Scotland, UK, October 2010

Kevin Schafer / Rainforest clearing for slash and burn agriculture, central Sulawesi, Indonesia

Pete Oxford / Slash and burn clearing, Intag Valley, northwest Ecuador

Pete Oxford / Slash and burn clearing, Intag Valley, northwest Ecuador

Pete Oxford / Naranjilla (Solanum quitoense) crop growing amid clear-cut forest, Intag Valley, northwest Ecuador

Pete Oxford / Slash and burn clearing, Intag Valley, northwest Ecuador

Mark Hamblin / 2020VISION / Scattered Scot's pine trees (Pinus sylvestris) beside the Dorback Burn, Dorback Estate, Cairngorms National Park, Scotland, UK, September 2011

Mark Hamblin / 2020VISION / Scattered Scot's pine trees (Pinus sylvestris) beside the Dorback Burn, Dorback Estate, Cairngorms National Park, Scotland, UK, September 2011

Mark Hamblin / 2020VISION / Scattered Scot's pine trees (Pinus sylvestris) beside the Dorback Burn, Dorback Estate, Cairngorms National Park, Scotland, UK, September 2011

Mark Hamblin / 2020VISION / Scattered Scots pine trees (Pinus sylvestris) beside the Dorback Burn, Dorback Estate, Cairngorms National Park, Scotland, UK, September 2011. Did you know? Only 1% of Scotland's ancient forest remain...

Peter Cairns / 2020VISION / Allt Ruadh burn running through ancient caledonian woodland, Glenfeshie, Inshriach, Cairngorms NP, Scotland, UK, October 2010

Peter Cairns / 2020VISION / Burn running from Cromalt Hills into Loch Lurgainn, Inverpolly, Sutherland, Highlands, Scotland, UK, January 2011

Peter Cairns / 2020VISION / Burn running from Cromalt Hills into Loch Lurgainn, Inverpolly, Sutherland, Highlands, Scotland, UK, January 2011

Juergen Freund / Aerial view of slash and burn areas on islands causing run-off of soil and siltation of the coastal reefs, Palawan, Philippines, May 2009.

Juergen Freund / Aerial view of slash and burn areas on island causing run-off of soil into the coastal reefs, Palawan, Philippines, May 2009.

Juergen Freund / Aerial view of slash and burn area on island causing run-off of soil into the coastal reefs and siltation, Philippines, May 2009.

Juergen Freund / Slash and burn deforestation on Palawan island, Philippines, April 2010. A growing population of migrants to Palawan has made slash-and-burn farming a widespread practice. It involves chopping down fo...

Juergen Freund / Instead of bicycles, children have dugout canoes to paddle for getting to places and to burn off energy, Marovo Lagoon, Solomon Islands, Melanesia, Pacific, July 2010.

Peter Cairns / Allt Ruadh burn flowing through autumn ancient pine forest. Glenfeshie, Cairngorms National Park, Scotland, October.

Anup Shah / Regrowth of rainforest on reclaimed land previously cleared by slash & burn agriculture. Pondok Tanggui, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. June 2010.

Anup Shah / Regrowth of rainforest on reclaimed land previously cleared by slash and burn agriculture. Pondok Tanggui, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. June 2010.

Martin Gabriel / St. Martins bonfire, burning at night, Bavaria, Germany, November

Marie Read / Mountain Bluebird (Sialia currucoides) female at nest hole in burned Jeffrey Pine (Pinus jeffreyi) Mono Basin, California, USA

Marie Read / Lewis's Woodpecker (Melanerpes lewis) outside its nest hole in burned Jeffrey Pine (Pinus jeffreyi), with beakful of insects to feed its young, Mono Lake Basin, California, USA. (Digitally retouched...

Philippe Clement / Waterfall and Buachaille Etive Mor at Glen Etive in Glencoe, Highlands, Scotland, May 2010

Thomas Lazar / Irregular black burn scorch mark on reddish bark of Giant sequoia tree (Sequoiadendron giganteum) Yosemite National Park, California, USA, June 2008

Theo Allofs / Celebes Black Macaque (Macaca nigra) group followed by scientist as they move across slash and burn area near village, Sulawesi, Indonesia

Theo Allofs / Celebes Black Macaque (Macaca nigra) sitting in dead tree in slash and burn area near village, Sulawesi, Indonesia

David Tipling / Slash and burn forest clearance, Alcoy Forest, Cebu, Philippines, March 2009

Chien Lee / Slash-and-burn is a common forest clearing practice, Borneo, Malaysia

Chien Lee / Slash-and-burn is a common forest clearing practice, Borneo, Malaysia

Chien Lee / Slash-and-burn is a common forest clearing practice, Borneo, Malaysia

Chien Lee / Slash-and-burn is a common forest clearing practice, Borneo, Malaysia

Juergen Freund / Slash and burn farming (the "Kaingin" system), typically practised by landless farmers who tend to engage in shifting cultivation by clearing large areas of forest to grow crops, Philippines.

Gerry Ellis / Slash and burn rainforest destruction for agriculture, Belize

Konrad Wothe / Maize (Zea mays) field, one year after forest was cleared using slash and burn agricultural techniques, Madagascar

Konrad Wothe / Slash and burn agriculture, where forest is burned to create agricultural land, Madagascar

Doug Wechsler / Controlled burn in Pitch Pine Forest, Pine Barrens, New Jersey, USA

Pete Oxford / Arid spiny forest habitat distruction due to slash and burn for agriculture and charcoal. Mangily near Ifaty. South-western MADAGASCAR

Pete Oxford / Tavy or Slash-and-burn-agriculture, nr Daraina, NE Madagascar. This method of farming where new forest is cut down after a few years when the soil is no longer productive is blamed for the permanent d...

Pete Oxford / Tavy or Slash-and-burn-agriculture, nr Daraina, NE Madagascar. This method of farming where new forest is cut down after a few years when the soil is no longer productive is blamed for the permanent d...

Suzi Eszterhas / A controlled burn sweeping across the savanna engulfing an Acacia tree in smoke, Masai Mara Reserve, Kenya

Pete Oxford / Tavy, the local name for slash and burn agricultural practices, used by locals to prepare soil for planting or grazing, northeast Madagascar

Tui De Roy / Long-finned Pilot Whale (Globicephala melas) pod swimming closely together in coastal waters, showing burn from stranding, Golden Bay, South Island, New Zealand

Pete Cairns / Decaying fallen tree lying in ancient pine forest alongside Allt Ruadh burn, Glenfeshie, Cairngorms National Park, Scotland, UK

Pete Cairns / Swirling outflow from Rogie Falls in autumn, Ross-shire, Highland, Scotland, UK

Pete Oxford / Aerial view of deliberate bush fire in order to make pasture (slash and burn procedure) Piaui State, Brazil, South America

HUW CORDEY / Aerial view of tropical rainforest cleared for agricultural use, Corcovado NP, Costa Rica. Filmed for BBC Planet Earth series. 2005

HUW CORDEY / Aerial view of tropical rainforest cleared for agricultural use, Corcovado NP, Costa Rica. Filmed for BBC Planet Earth series.

Nick Gordon / Previous site of primary rainforest cleared for cattle ranching, probably by slash and burn, Rondonia State, Amazonia Brazil

Jabruson / Recent slash and burn clearance of tropical rainforest for agricultural use, Ituri Epulu rainforest reserve, Republic of Congo

Jabruson / Deforestation along road for slash and burn agriculture, Epulu Ituri Reserve, Democratic Republic of Congo

Pete Oxford / Landscape showing physical scars of slash & burn agriculture where once forest stood, near Ambilobe, Madagascar

Jabruson / Deforestation making way for slash & burn agriculture, Epulu Ituri Rainforest Reserve, Democratic Republic of Congo

Jabruson / Deforestation of tropical rainforest for cattle pasture, Butembo, Democratic Republic of Congo

John Downer / Slash and burn agriculture, Chiapas, Mexico

Jabruson / People clearing through recent deforestation of tropical rainforest habitat for slash and burn agriculture, Epulu Ituri, Democratic Republic of Congo, formerly Zaire

Jabruson / Charcoal production on site of former tropical rainforest habitat, cleared for other use, Tongo, Democratic Republic of Congo, formerly Zaire

Jabruson / Slash and burn tropical rainforest clearance to make way for agriculture, Mbomo NP, Odzala NP, Republic of Congo

Suzi Eszterhas / A controlled burn sweeps across the savanna at sunset, Masai Mara Reserve, Kenya

Suzi Eszterhas / A controlled burn sweeps across the savanna at sunset, Maasai Mara Reserve, Kenya

Suzi Eszterhas / A controlled burn sweeps across the savanna, Maasai Mara Reserve, Kenya

Suzi Eszterhas / A controlled burn sweeps across the savanna at sunset, Maasai Mara Reserve, Kenya

Larry Michael / Aftermath of controlled burn of native prairie, Wisconsin, USA

Larry Michael / Prairie fire restoration conservation project, Wisconsin, USA

Steven Fuller / Sign telling public not to report a natural fire in Yellowstone NP, Wyoming, USA. 2003. Authorities aware of fire and allowing a controlled burn.

Steven Fuller / Fire burn mosiac created by forest fire in Lodgepole pine forest, Yellowstone NP, Wyoming, USA. 1989

Steven Fuller / Fire burn mosiac created by forest fire in Lodgepole pine forest, Yellowstone NP, Wyoming, USA. 1989

Ian Lockwood / Jhuum - slash & burn cultivation of land for crop planting or cattle grazing, Garo Hills near Williamnagar, Meghalya, India

Mark Yates / Two strata of shale rock beside stream, Lewis burn, Kielder Forest, Northumberland, UK

Richard Du Toit / Spring shoots growing after winter burn, fire from lightning strike. Kruger NP, South Africa.

Karl Ammann / Aerial view of logging camp, Gabon, Central Africa. Camps attract hunters, who sell bushmeat to the local workforce and clear-cut large forest sreas for slash and burn farming. Logging vehicles are al...

Pete Cairns / Mountain stream in ancient woodland, Cairngorms National Park, autumn, Scotland.

TOM MANGELSEN / Yellowstone National Park Fire burn area. Dunraven Pass, Wyoming, USA.

Nick Garbutt / Slash and burn forest clearance. Spiny forest, Ifaty, SW Madagascar

TOM MANGELSEN / Yellowstone National Park - Fire burn and regrowth area. Wyoming, USA.

TOM MANGELSEN / Yellowstone NP. Burn area in winter. Wyoming, USA. Raven in tree top.

Konrad Wothe / Tropical rainforest being cleared for slash and burn agriculture, Irian Jaya, Indonesia