FOI - Enderby Wharf copy of AMEC's study

'New European legislation that came into force earlier this year required cruise operators to stay for longer in London with vessels starting and ending in the capital' The only legislation is that vessels are required to burn diesel containing a maximum of 0.1% sulphur content diesel within the Emission Control Area. Please can you quantify the statement that, 'requires cruise operators to stay longer'? 'which requires vessels to burn less than 0.1 per cent sulphur emissions.' Please explain the meaning of this sentence? 'which requires them to burn low sulphur on their approach to London and while in port, resulting in a 97 per cent reduction in emissions.' Please explain this sentence? What emissions are reduced by 97%? 'The Mayors office also asked an independent air quality consultancy, AMEC, to study the impact of emissions'. Please can you provide me with a copy of AMEC's independent study with regard to emissions from a cruise ship?