Ernie Janes / Asparagus crop in poly tunnels near Ringstead, Norfolk, UK May 2018.

Juergen Freund / Man from Ligau Levu Village preparing roly poly bread with sweetend grated coconut for breakfast, Mali Island, Macuata Province, Fiji, South Pacific. August 2013

Gary K. Smith / Vegetables, Tomatoes, Lettuce, Runner beans, Carrots and Melons growing in poly tunnel, Norfolk, UK, July

Gary K. Smith / Vegetables, Tomatoes, Lettuce, Runner beans, Carrots and Melons growing in poly tunnel, Norfolk, UK, July

Phil Savoie / Intensive cultivation of Tomato plants {Solanum lycopersicum esculentum} in greenhouse / poly tunnel, Massachusetts, USA

Martha Holmes / Club finger coral (Porites porites) with polyps extended, Jamaica, Caribbean

Niall Benvie / Wild flower cultivation with Red campion (Silene dioica) seeds drying in poly tunnel, Fife, Scotland