This award-winning image from 2017 proved a striking example of the damage being done to the ocean by discarded rubbish. Photo: Justin Hofman
Surf instructor Tommy Olsen teachers beginners how to ride the waves in Norway's Lofoten Island in the Arctic Circle. AFP
Greenpeace's 'Arctic Sunrise' ship navigates through floating ice in the Arctic Ocean. Reuters
A snorkler identifies species growing on the hull of a ship during a marine biology survey in the Indian Ocean in False Bay, Cape Town. EPA
An iceberg in the western Antarctic peninsula. AFP
Millions of pieces of plastic, micro plastics and debris are visible in the ocean as a free diver collects litter during the Big Ocean Clean Up in Hermanus, South Africa. EPA
Bioluminescent algae glows in the crashing waves as a lifeguard tower sits on an empty beach in Encinitas, California. Reuters
Two men prepare a net to fish in the port of Palo Seco, in the Gulf of Montijo in Mariato, Veraguas, Panama. EPA
A sailor assigned to Naval Special Warfare Group 2 conducting military dive operations in the Atlantic Ocean off the US east coast. AFP
The Indian Ocean laps the Koattey wetlands in Hithadhoo, Maldives. Getty Images
A plastic bottle floats in the water. Photo: National Geographic Abu Dhabi
World Oceans Day helps to raise awareness of issues blighting the environment, such as plastic pollution. Photo: National Geographic Abu Dhabi
This powerful image highlights the growing problem of plastic pollution. Photo: National Geographic
A species of dolphin, known as the false killer whale, thrives in tropical and subtropical oceans. Photo: Dr Csaba Geczy
More than 300 kilograms of ghost nets were retrieved by the team of divers cleaning up the ocean in the Mergui archipelago, Myanmar.
Fish swim along the edges of a coral reef off Great Keppel Island in Australia. AP
This satellite image from the US National Oceanic and Atmospheric Administration shows a plume of smoke from the Saddleridge wildfire streaming out over the Pacific Ocean. AP
The temperature of the world’s oceans is rising dramatically. Reuters
From the Great Barrier Reef to the Arabian Gulf and beyond, protecting the seas and oceans is about as urgent an issue as you could hope to find, marine scientists say. Getty Images
People scoop leaked oil from the vessel 'MV Wakashio' that ran aground and caused oil leakage near Blue Bay Marine Park in south-east Mauritius. AFP
This award-winning image from 2017 proved a striking example of the damage being done to the ocean by discarded rubbish. Photo: Justin Hofman
Surf instructor Tommy Olsen teachers beginners how to ride the waves in Norway's Lofoten Island in the Arctic Circle. AFP
Greenpeace's 'Arctic Sunrise' ship navigates through floating ice in the Arctic Ocean. Reuters
A snorkler identifies species growing on the hull of a ship during a marine biology survey in the Indian Ocean in False Bay, Cape Town. EPA
An iceberg in the western Antarctic peninsula. AFP
Millions of pieces of plastic, micro plastics and debris are visible in the ocean as a free diver collects litter during the Big Ocean Clean Up in Hermanus, South Africa. EPA
Bioluminescent algae glows in the crashing waves as a lifeguard tower sits on an empty beach in Encinitas, California. Reuters
Two men prepare a net to fish in the port of Palo Seco, in the Gulf of Montijo in Mariato, Veraguas, Panama. EPA
A sailor assigned to Naval Special Warfare Group 2 conducting military dive operations in the Atlantic Ocean off the US east coast. AFP
The Indian Ocean laps the Koattey wetlands in Hithadhoo, Maldives. Getty Images
A plastic bottle floats in the water. Photo: National Geographic Abu Dhabi
World Oceans Day helps to raise awareness of issues blighting the environment, such as plastic pollution. Photo: National Geographic Abu Dhabi
This powerful image highlights the growing problem of plastic pollution. Photo: National Geographic
A species of dolphin, known as the false killer whale, thrives in tropical and subtropical oceans. Photo: Dr Csaba Geczy
More than 300 kilograms of ghost nets were retrieved by the team of divers cleaning up the ocean in the Mergui archipelago, Myanmar.
Fish swim along the edges of a coral reef off Great Keppel Island in Australia. AP
This satellite image from the US National Oceanic and Atmospheric Administration shows a plume of smoke from the Saddleridge wildfire streaming out over the Pacific Ocean. AP
The temperature of the world’s oceans is rising dramatically. Reuters
From the Great Barrier Reef to the Arabian Gulf and beyond, protecting the seas and oceans is about as urgent an issue as you could hope to find, marine scientists say. Getty Images
People scoop leaked oil from the vessel 'MV Wakashio' that ran aground and caused oil leakage near Blue Bay Marine Park in south-east Mauritius. AFP
This award-winning image from 2017 proved a striking example of the damage being done to the ocean by discarded rubbish. Photo: Justin Hofman
