Espen Bergersen / Killer whales / orcas (Orcinus orca) feeding on a bait ball of Herring. Extremely cold conditions (- 15 C) with backlit ice fog. Kvanangen, Troms, Norway. January

Floris van Breugel / View of Pacific coastline in fog and mist, Ruby Beach, Olympic National Park, Washington, USA, June 2008

David Woodfall / Arctic terns (Sterna paradisaea) in flight with a researcher walking, in mist, Northumberland, UK, June 2009

Mark Bowler / Large flock of roosting Grey gulls (Leucophaeus modestus) on beach with coastal fog over the Atacama Desert on the Peruvian coast, Paracas National Park, Peru.

Espen Bergersen / Killer whales / orcas (Orcinus orca) feeding on a bait ball of Herring, with flock of gulls flying above, in extremely cold conditions (- 15 C) with backlit ice fog, Norway. November.

Espen Bergersen / Killer whales / orcas (Orcinus orca) feeding on a bait ball of Herring. Extremely cold conditions (- 15 C) with backlit ice fog. Kvanangen, Troms, Norway. January

Jack Dykinga / Bald Hills in morning coastal fog engulfing oak trees and fields of Lupins at dawn. Redwood State and National Park, California, USA, May 2018.

Jack Dykinga / Bald Hills in morning coastal fog engulfing oak trees and fields of Lupins at dawn. Redwood State and National Park, California, USA, May 2018.

Ashley Cooper / Lighthouse on Lundy Island, Devon, England, UK, June 2006.

Erlend Haarberg / Sea fog over Runde Island in Norway, May 2012.

Frederique Olivier / View of pack ice in thick fog, seen from a moving boat, Antarctica.

David Noton / Sea fog and Cormorants, Platboon Beach, Cape of Good Hope, South Africa

Jeff Rotman / Lobster boat sits in morning fog at harbour, Yarmouth, Maine, USA October

Jeff Rotman / Lobster boat sits in morning fog at harbour, Yarmouth, Maine, USA October

Jack Dykinga / Coastal fog drifting over Namib Desert's 'Rock Garden' from the Skeleton Coast, Namibia, November 2009.

Kirkendall-Spring / Sunlight through fog at Rialto Beach, Olympic National Park, Washington, USA. March 2016.

Graham Eaton / An atmospheric Llynnau Mymbyr, with ice and fog, Capel Curig, Snowdonia, Wales, December

Loic Poidevin / Fog along Spitzberg coastline, Svalbard, Norway, August 2014.

Loic Poidevin / Fog over Cap Frehel, Cotes-d'Armor, France, March 2014.

Erlend Haarberg / View of Lovund archipelago in sea fog from top of Lundeura, Luroy, Helgeland, Nordland, Norway, July 2009

Adrian Davies / View from Torcross to Slapton Ley National Nature Reserve with sea mist, Devon, England, UK, July.

Adrian Davies / View from Torcross to Slapton Ley National Nature Reserve with sea mist, Devon, England, UK, July.

Floris van Breugel / The sun breaks through layers of morning fog with wild Pacific Rhododendrons (Hymenanthes macrophylla) bloom amidst the giant Redwood trees. Del Norte Coastal Redwood State Park, June 2008

Floris van Breugel / Sunrise in Olympic National Park, from Deer Park, with a view of the Strait of Juan de Fuca covered in clouds and the mountains of Vancouver Island. Washington, USA, July 2013

Juan Carlos Munoz / Tourist walking along the coast of Giant's Causeway, UNESCO World Heritage Site, County Antrim, Northern Ireland, Europe, June 2011

Juan Carlos Munoz / Giant's Causeway, UNESCO World Heritage Site in mist, County Antrim, Northern Ireland, Europe, June 2011.

LYNN M. STONE / Yellow Labrador Retriever sitting on seashore rocks on a foggy morning, Pemaquid, Maine, USA

Peter Cairns / 2020VISION / Gannet in flight (Morus bassanus) in coastal mist, Hermaness NNR, Unst, Shetland, Scotland, June

David Woodfall / Arctic terns (Sterna paradisaea) in flight with a reseacher in mist, Northumberland, UK, June 2009

Michael Durham / Fog in the valleys of coastal mountains, Clatsop State Forest, Oregon

Barrie Britton / Sunset over coastal fog on the Atacama Desert, Chile, c 2004

Barrie Britton / Cacti in coastal fog, how these plants survive in Atacama desert, Chile

Barrie Britton / Finches on cacti in coastal fog, Atacama desert, Chile

Barrie Britton / Atacama desert, with coastal fog bringing water to desert, Chile

David Noton / Alexandra fjord under fog, Ellesmere Island, Canadian Arctic

Michael Hutchinson / Coastal Giant Redwood forest {Sequoia sempervirens} in fog, trees get their water from the fog, Redwood NP, California, USA

Michael Hutchinson / Coastal Giant Redwood forest {Sequoia sempervirens} in fog, trees get their water from the fog, Redwood NP, California, USA

Michael Hutchinson / Coastal Giant Redwood forest {Sequoia sempervirens} in fog, trees get their water from the fog, Redwood NP, California, USA

Michael Hutchinson / Coastal Giant Redwood forest {Sequoia sempervirens} in fog, trees get their water from the fog, Redwood NP, California, USA

Norbert Wu / Ochre Sea Star (Pisaster ochraceus) among intertidal algae in tide pools, Point Lobos, Monterey, California

Tim Fitzharris / Ruby Beach with seastack and boulder, Olympic National Park, Washington

Matthias Breiter / Coastal rainforest clinging to glacial carved rock walls in Gold River Valley, Vancouver Island, Canada

Flip de Nooyer / Coastal fog hugs cliffs along Elsehul Bay, South Georgia Island

Jim Brandenburg / Fog over sand dunes in the Namib Desert, Namibia

Matthias Breiter / Coastal temperate rainforest in clouds, Anan Creek, Alaska

Jim Brandenburg / Surf receding back into the Pacific Ocean, Olympic National Park, Washington

Stefan Christmann / Sea fog moving across freshly formed sea ice, interrupted by open pools, ice shelf and iceberg in the distance, Antarctica, March.

Frederique Olivier / Sea fog in Crocker Bay, Devon Island, Canadian Arctic, September.

Tony Wu / Aerial view of Wrangel Bay, Russia, one of the locations where bowhead whales (Balaena mysticetus) of the endangered Sea of Okhotsk subpopulation visit during the summer. The shallow waters of the bay...

Orsolya Haarberg / Sea fog rolling in over coastal mountain and glacier. Svartisen Ice Cap. Saltfjellet-Svartisen National Park, Norway. August.

Frederique Olivier / Glacier and mountains in fog, Magdalena Fjord, Svalbard, Norway, 2016.

Frederique Olivier / Tracking shot of glacier and mountains in fog, Magdalena Fjord, Svalbard, Norway, 2016.

Frederique Olivier / Tracking shot of fog lines and fjord coast, Sabine Land, East Spitsbergen, Svalbard, Norway, 2016.

Frederique Olivier / Tracking shot transiting a snowy fjord, with fog lines, Sabine Land, East Spitsbergen, Svalbard, Norway, 2016.

Philippe Clement / Sea thrift / sea pink (Armeria maritima) in flower and sailing boat anchored in the mist in front of sandy beach, Shetland, Scotland, UK. May