Editing Mayor of London (section)

===Sadiq Khan===
{{Update|section|date=May 2024}}
[[Sadiq Khan]] introduced the 'bus hopper' fare on [[Transport for London|TfL]] buses, which allows passengers to board a second bus within one hour for the same fare.<ref>{{Cite web|url=https://www.citymetric.com/transport/sadiq-khan-s-hopper-fare-encouraging-londoners-buses-3455|title=Is Sadiq Khan's hopper fare encouraging Londoners onto the buses? &#124; CityMetric|website=citymetric.com}}</ref> Under Khan, paper, coin and cash transactions became obsolete. The [[Oyster card|Oyster]] system was expanded to include debit and credit cards. This initiative was started under his predecessor, Johnson.<ref>{{Cite web|url=https://www.cnet.com/culture/contactless-credit-and-debit-cards-can-now-be-used-on-london-tube/|first=Richard|last=Trenholm|title=Contactless credit and debit cards can now be used on London tube|website=[[CNET]]|date=16 September 2014}}</ref>

Upon election, Khan outlined a vision to make London the "greenest city" by investing in walking and [[cycling infrastructure]] while reducing polluting vehicles.<ref>{{Cite web|url=https://www.london.gov.uk//press-releases/mayoral/london-environment-strategy-sets-out-vision|title=Mayor sets out bold strategy to make London the greenest global city|date=11 May 2018|website=London City Hall}}</ref> In 2019, the "[[Ultra Low Emission Zone]]" scheme was launched which taxes highly polluting vehicles in its covered territory.<ref>{{Cite web|url=https://www.london.gov.uk//press-releases/mayoral/ulez-launches-in-central-london|title=World's first 24 hour Ultra Low Emission Zone starts in London|date=8 April 2019|website=London City Hall}}</ref> London declared itself the world's first "National Park City" (effective from July 2019),<ref>{{Cite web|url=https://www.cnn.com/2018/11/28/world/london-national-park-city/index.html|title=How London will become a National Park City|first=Esan |last=Swan |others=video by Nabila Khouri and Stefanie Blendis|date=28 November 2018|publisher=CNN}}</ref> reflecting its unusually high amount of green space for a city of its size.<ref>{{Cite web|url=https://www.theguardian.com/local-government-network/2014/may/27/greater-london-national-park-city|title=Why Greater London should be made into an urban national park|first=Daniel|last=Raven-Ellison|date=27 May 2014|work=The Guardian}}</ref>

====Extended term====
The Government postponed all elections due in May 2020, including for the mayor of London, for one year due to the [[COVID-19 pandemic]]. Khan had therefore served a term in office of five years rather than four, which ended in [[2021 London mayoral election|May 2021]].<ref>{{Cite web|url=https://www.gov.uk/government/news/postponement-of-may-2020-elections|title=Postponement of May 2020 elections|via=gov.uk}}</ref> He was re-elected in 2021 for a shortened three-year term,<ref>{{cite web|title=Coronavirus Act 2020|url=http://www.legislation.gov.uk/ukpga/2020/7/section/60/enacted/data.htm|access-date=20 June 2023|work=Legislation.gov.uk}}</ref> defeating the Conservative candidate [[Shaun Bailey (AM)|Shaun Bailey]].<ref>{{cite web|title=Sadiq Khan reelected as London mayor for second term|url=https://www.theguardian.com/politics/2021/may/08/sadiq-khan-london-mayor-second-term-labour-shaun-bailey-conservatives|work= [[The Guardian]]|author= Savage, Michael; and agencies|date=8 May 2021|access-date=8 May 2021}}</ref><ref>{{cite news|url=https://www.independent.co.uk/news/uk/politics/sadiq-khan-london-mayor-win-b1844335.html|title=Sadiq Khan wins second term as London mayor|first=Alastair|last=Jamieson|work=[[The Independent]]|date= 7 May 2021|access-date=7 May 2021}}</ref>