Celebrating humanity’s ability to survive and innovate, the competition is organised by environmental and water management charity Chartered Institution of Water and Environmental Management.
Here are the winners of this year's award:
They prevent light from penetrating the surface and prevent oxygen absorption by the organisms beneath, impacting human health and habitats in the area.
Algalif plant produces sustainable astaxanthin from micro-algae using 100 per cent clean geothermal energy.