paddington

Algae blooms covering the surface of the Paddington canal basin in London, Britain 12 August 2013. Soaring temperatures, along with heavy downpours that have led to fertilisers being washed into ponds and lakes, has led to a larger than usual explosion of algae across many of Britain's waterways.

Andy Rain/EPA

Algae blooms cover the surface of the Paddington canal basin in London, UK. Soaring temperatures along with heavy downpours have washed fertilisers into waterways and led to the larger-than-usual explosion of algae across the country.