Greenspace Information for Greater London, ‘Key London Figures’, https://www.gigl.org.uk/keyfigures/; London gov.uk, ‘Biodiversity’, https://www.london.gov.uk/what-we-do/environment/parks-green-spaces-and-biodiversity/biodiversity; Secretariat of the Convention on Biological Diversity, Cities and Biological Diversity Outlook (Montreal, 2012), pp. 9, 24.
