Tony Wu / A tangle of fishing nets, lines, hooks and other garbage found floating in the Indian Ocean. There was a small community of fish associated with this trash, but also fish that had been entangled and k...

Laurent Geslin / Plastic bottles and other pollutants floating on the surface, Lake of Geneva, France. March 2008.

Angelo Gandolfi / Ray (Raja sp.) fish catch and plastic water bottles on a small fishing boat, Mediterranean sea. 'By 2050 there could be more plastic in the ocean than there is fish' Ellen McArthur Foundation

Pete Oxford / Large heap of plastic bottles for recycling, Santa Cruz Island, Galapagos Islands, plastic is crushed and returned to mainland Ecuador for recycling

Sue Daly / Plastic bag floating in the sea, resembling a jellyfish swimming Dangerous to sea turtles

Franco Banfi / Sperm Whale(Physeter macrocephalus) playing with plastic bag, Vulnerable (IUCN), Pico Island, Azores, Portugal, Atlantic Ocean

Juergen Freund / Outrigger boats catch Yellowfin tuna fishing with hook and line. Catching a Yellowfin tuna, these fishermen fish near a fish attracting device (FAD) or rumpon, attached to a raft or rakit some 100 km...

Jordi Chias / Loggerhead turtle (Caretta caretta) trapped in an abandoned drifting net, Balearic Channel, Mediterranean sea.

Jordi Chias / Loggerhead turtle (Caretta caretta) trapped in a drifting abandoned net, Mediterranean Sea. (Winner of the One Earth Award, WPY Competition 2010 )

Michael Pitts / Hawaiian monk seal caught in fishing tackle off Kure Atoll, Pacific Ocean. The seal was subsequently freed and released by the photographer.

Espen Bergersen / Dead bird possibly Black guillemot (Cepphus grylle) caught in discarded fishing net, Rebbenesoya, Troms, Norway, April.

Danny Green / Atlantic Puffin (Fratercula arctica) caught in plastic cable, Sule Skerry, Scotland, UK, July

Espen Bergersen / Arctic fulmar (Fulmarus glacialis) dead after it was caught in abandoned fishing net. to Risoya, Troms, Norway, June.

Pedro Narra / Green turtle (Chelonia mydas) hatchling caught in fishing net, Bissagos Islands, Guinea Bissau. Endangered species. 3rd Place in the SOS Especes Menacees / SOS Endangered Species Portfolio category of...

Alex Mustard / Female Grey seal (Halichoerus grypus) tangled in a discarded fishing net, Lundy Island, Devon, England, UK, July 2010.

Alex Mustard / Veined octopus (Amphioctopus marginatus) incorporating a piece of plastic bag when making its den. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Solvin Zankl / Deep sea shrimp with plastic fishing net in its throat, found at 1200m depth. Atlantic Ocean, close to Cape Verde.

Espen Bergersen / Plastic straw washed up among seashells on beach, Lyngoya, Troms, Norway, April.

Solvin Zankl / Student with vial of micro plastics from marine samples, in the lab of the tall ship Corwith Cramer. Sargasso Sea, Bermuda. April 2014.

Pete Oxford / Rubbish floating in river, Rio de Janeiro, Brazil, July 2010

Julia Bayne / Rubbish overflowing from street bin, Bristol, England

Alex Mustard / Discarded football floating in the ocean. Plastic pollution is a major issue for the oceans. Raja Ampat, West Papua, Indonesia. Dampier Strait, tropical West Pacific Ocean.

Franco Banfi / Dorid nudibranch (Phyllidia ocellata) on discarded plastic bottle, Pulau Dofior, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Georgette Douwma / Plastic bag and disposable nappy floating at the surface of the sea. Bunaken National Park, North Sulawesi, Indonesia.

Luis Quinta / Plastic floating in the Atlantic ocean, Azores, Portugal.

Tui De Roy / Galapagos fur seal (Arctocephalus galapagoensis) pups playing with plastic sheeting, Galapagos.

Alex Hyde / Marine microplastics (particles with upper size limit of 5mm) washed up on a beach in Pembrokeshire, Wales, UK. January.

Alex Mustard / Coral reef covered with discarded plastic bags. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Philippe Clement / Discarded non-degradable rubbish including plastic bottles and nylon fishing nets, collected in the dunes, Belgium

Sam Hobson / Northern gannet (Morus bassanus) entangled in marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Scientists untangling Northern gannet (Morus bassanus) from marine litter. Grassholm Island, Wales, UK. October

Sam Hobson / Seabird researcher catching Northern gannet (Morus bassanus) nesting among marine litter, Bass Rock, Scotland, UK. August

Sam Hobson / Juvenile northern gannet (Morus bassanus) foot entangled in marine litter. Grassholm Island, Wales, UK. October

Christophe Courteau / Plastic Bottles of drinking Mineral Water for sale in Supermarket, France.~2005. Digital Image Modified

Kirkendall-Spring / Pile of plastic bottles and other rubbish, Paro River Valley. Bhutan, October 2014.

Nick Turner / Woman putting plastic bottles and cardboard into kitchen recycling bins, September 2008.

Ben Osborne / Woman putting plastic bottle into recycling unit in supermarket carpark, Shrewsbury, Shropshire, UK

Espen Bergersen / Child gathering marine pollution from beach, Troms, Norway, May 2017. Winner of the Threatened Nature category of the Nordic Nature Photo Contest (NNPC) 2018. Model released.

Arne Hodalic / Scuba diver removing plastic marine litter from the sea bed. Mljet National Park, Mljet Island, Croatia. May 2015.

Arne Hodalic / Scuba diver removing plastic marine litter from the sea bed. Mljet National Park, Mljet Island, Croatia. May 2015. Model released.

Ben Gillett / The Bristol Whales - wicker sculpture of two Blue whales surfacing surrounded by plastic bottles. Art installation by Cod Steaks to mark the Bristol Green Capital 2015. Millennium square, Bristol, Eng...

Claudio Contreras / Project Seahorse foundation staff weighing discarded plastic fishing nets collected and ready to be shipped out for recycling into carpet material, Jao Island, Danajon Bank, Central Visayas, Philippin...

Lisa Hoffner / Colombian woman knitting mochilas and other products woven from recycled plastic bags. This project has recycled more than 1.5 million plastic bags and provides an income to the village living around...

Chris O'Reilly / Young girl and mother recycling plastic and cardboard in street, Derbyshire, UK, April, Model released

Roland Seitre / Hawksbill Turtle (Eretmochelys imbricata) with plastic bag, Red Sea, south of Safaga, Egypt.

Alex Mustard / Plastic pollution floating on the surface of the water in the harbour of Havana, Cuba.

Alex Mustard / Snowflake moray eel (Echidna nebulosa) home amongst garbage on the seafloor, including a plastic toothpaste tube. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocea...

Pete Oxford / Marine pollution on beach near Sorong Fish Market, Bos Wesen Market, Sorong, West Papua, Indonesia

Pete Oxford / Discarded plastic floating in the sea, Lesser Sunda Islands, Indonesia

Juergen Freund / Coastal pollution, viewed from underwater, Philippines, May 2006

Ann & Steve Toon / Hedgehogs (Erinaceus europaeus) can get their head stuck in discarded plastic can holder. Set-up shot with captive animal

Paul Williams / Giant otter (Pteronura brasiliensis) adult playing with plastic bottle, Pantanal, Pocone, Brazil

Constantinos Petrinos / Big plastic sack entangled on a Gorgonian Sea Fan, Lembeh Strait, North Sulawesi, Indonesia.

John Cancalosi / White stork {Ciconia ciconia} caught in plastic rubbish at refuse dump, Spain

Bence Mate / Black headed gull (Chroicocephalus ridibundus) taking off with foot caught in discarded coat hanger, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. May. Awarded in Wildlife Photojournalist:...

Hermann Brehm / South african fur seal {Arctocephalus pusillus pusillus} pup caught in fishing net, South Africa

Espen Bergersen / Dead bird possibly Black guillemot (Cepphus grylle) caught in discarded fishing net, Rebbenesoya, Troms, Norway, April.

Solvin Zankl / Scientists lowering plankton net to investigate marine microplastics, from Corwith Cramer, a 134-foot steel brigantine. Sargasso Sea, Bermuda, April 2014.

Five Films / Marine plastic pollution washed up on the shore, Svalbard, Norway, August 2017.

Five Films / Marine plastic pollution washed up on the shore, Svalbard, Norway, August 2017.