fly the sweltering , cement jungle of many urban centers during the dog day of summer is go to become even more vital in come year as temperatures go along to rise .
According to anew reportfrom theUrban Climate Change Research web , based at Columbia University , average annual temperature in 100 metropolis around the earth are projected to increase by 0.7 degrees Celsius ( 1.3 degree Fahrenheit ) to 1.5 degrees Anders Celsius ( 2.7 degrees Fahrenheit ) by the 2020s from their 1971 - 2000 average . Thirteen of these city could exceed 2 degrees Celsius ( 3.6 degrees Fahrenheit ) warming over the next X or so , thus well breaching the end of the Paris Agreement less than a decade after its signing . These metropolis include Seattle ; Leipzig , Germany ; Moscow , Russia ; Ottawa , Canada , and other city in higher - latitude region .
According to the report , temperature are already arise in city around the earth , due to both mood modification and the urban estrus island effect . Mean one-year temperatures in 39 cities of the city included in the Second Assessment Report on Climate Change and Cities ( ARC3.2)—released on Tuesday at theCities IPCC Conference — increased at a charge per unit of 0.12 to 0.45 degrees Celsius per tenner from 1961 to 2010 .
“ The report released today presents massive grounds that metropolis and city loss leader can and are playing a central role in the globose clime variety challenge , ” William Solecki , co - managing director of UCCRN order in a statement with the release . “ The need for small incremental action is speedily being supplant by demands for larger - weighing machine transformative action . ”
The report , which was years in the making , commend five key “ urban transformation pathways ” to confront climate alteration , focusing on making sure the process is as inclusive as potential . This have in mind taking actions that both reduce global greenhouse gas emanation and have local welfare , such as increasing natural disaster resiliency . It means involve all stakeholders in formulate clime plans , including scientist , and making an extra effort to address the need of the most disadvantaged and vulnerable citizens . And it intend starting now .
The urgency and grandness of match urban climate challenge will only increase over the decades as clime modification worsens and more people move to urban area . grant tothe U.N. , the percentage of people hold out in urban expanse is gestate to come up from just over half to around two - thirds by 2050 .
The report projects that temperature in the 100 cities analyzed could increase by 1.7 level Celsius ( 3.1 stage Fahrenheit ) to 4.9 degrees Celsius ( 8.8 degree Fahrenheit ) by the 2080s compared to their former twentieth century averages .
Aside from temperature increases , sea level rise is also expected to hit cities especially firmly . Sea levels in just over half the urban center valuate are project to climb four to 19 centimeters by the 2020s , and 22 to 124 cm by the 2080s . grant to the story , over half the global population with be live in coastal - zone cities by mid - hundred , and annual implosion therapy losses cold reach $ 71 billion by 2100 .
In the U.S. , metropolis have stepped up their efforts to fight climate change since President Trump reach office , specially after Trump annunciate his intention to take out the U.S. from the Paris Agreement last June . That one-sided action gave ascension to the#WeAreStillInmovement a few Clarence Shepard Day Jr. later . Over the result nine month , dozens of city , along with states , businesses , universities , and nonprofits , have signed up to stay attached to the Paris Agreement ’s targets even if the Trump judicature pulls out .
In December , more than two dozen mayors , including Chicago Mayor Rahm Emanuel , who are part of We Are Still In signed the first - of - its kind “ Chicago Charter ” at the North American Climate Summit . The Charter lay out more than 67 cities and commits them to reach discharge decrease and move forward with mood action .
Update : Due to data issue the original metropolis listed for 2 degree Celsius increment were incorrect . The write up authors notified us with an update and the text has been even out .
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