London is the UK’s largest city and its capital. It has also come to be recognised as a global centre for financial and professional services, as well as a major tourist destination. The city has a population of 7.6 million and is the headquarters for more than one-half of the UK’s largest companies, as well as being a hub for multinational companies establishing a foothold in the European market. London is ranked 11th overall in the European Green City Index, with a score of 71.56 out of 100. The city has been actively promoting its efforts on climate change, with a range of initiatives and plans that target various aspects of the environment.