{"apiKey":"b08bca6362c188d40519ea5501ffd4a94d8003dc","product":"PRO_MULTISITE","logConsent":false,"consentCookieExpiry":90,"encodeCookie":false,"subDomains":true,"notifyOnce":false,"rejectButton":true,"toggleType":"slider","closeStyle":"button","settingsStyle":"link","initialState":"NOTIFY","layout":"SLIDEOUT","position":"LEFT","theme":"LIGHT","necessaryCookies":["CONSENT","CookieConsent","crisis_communication_modal","googtrans","test_cookie","what-intent"],"optionalCookies":[{"name":"Marketing","label":"Marketing","description":"

Marketing cookies are used to track visitors across websites. These cookies are used to try to display ads (or track the success of adverts on other sites) that are relevant to our visitors. Often these are not used by london.gov.uk, but by services like YouTube or other third parties that we use on our website.

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We use services such as Google Analytics, Hotjar and AB testing through VWO, to measure how visitors use our website so we can improve it. Google Analytics, Hotjar and VWO set cookies that store anonymised information about how you got to the site, the pages you visit, how long you spend on each page and what you click on or do while you're visiting the site.

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We use some essential cookies to make this website work.

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We’d like to set additional cookies to understand how you use london.gov.uk, remember your settings and improve our services.

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We also use cookies set by other sites to help us deliver content from their services.

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We use some essential cookies to make this website work.

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We also use cookies set by other sites to help us deliver content from their services.

\r\n","on":"Yes","off":"No","notifyTitle":"Your choice regarding cookies on this site","notifyDescription":"

We use some essential cookies to make this website work.

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We’d like to set additional cookies to understand how you use london.gov.uk, remember your settings and improve government services.

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We also use cookies set by other sites to help us deliver content from their services.

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Current Issues Note 24: Carbon emissions from rail and air travel

Key information

Contents

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