David Woodfall / Salt marsh channel at high tide with Talacre lighthouse in the background. Gronant Local Reserve, Denbighshire, Wales, UK, July 2018.

Terry Whittaker / Sand dune ecosystem with cyclists on the coastal cycle path on the north coast of Holland, Netherlands, April 2018.

Nick Upton / Grey seal pup (Halichoerus grypus) scratching itself with a flipper while lying on a sandy beach, Norfolk, UK, January.

Sebastian Kennerknecht / Northern coastal scrub and coastal prairie ecosystem, Pescadero, California

Sebastian Kennerknecht / Northern coastal scrub and coastal prairie ecosystem, Pescadero, California

Mark Moffett / Showing the coastal forest of Ilha Grande Island, Atlantic Forest ecosystem, Brazil

Mark Moffett / Sunlight illuminating the forest along the coast of Ilha Grande Island, Atlantic Forest ecosystem, Brazil

Mark Moffett / Orchid (Clusia lanceolata) a native to Brazil's Atlantic Coastal forest, the female Orchid Bee (Euglossa viridissima) shown here, gathers floral resins from the flower to construct her brood cells, At...

Claus Meyer / Northern Coastal House Snake (Thamnodynastes strigilis) rearing up in defensive position, Caatinga ecosystem, Brazil

Claus Meyer / Ground Snake (Thamnodynastes pallidus) eating a lizard, Caatinga ecosystem, Brazil

Norbert Wu / Trash on beach impacts the coastal ecosystem, Mediterranean Sea, Sardinia, Italy

Charlie Hamilton-James / Aerial view of mangrove and river system, part of the largest mangrove system in Central America, Sierpe, south west Costa Rica.