Kate Johnson

Climate change, cities, and sustainability. Proud resident of the 51st State. US Federal Affairs @c40cities. All views are my own.

[C40 Cities @c40cities]

🚫 A global crisis requires global courage - not a federal retreat.

President Trump's decision to withdraw from the UNFCCC and 65 international agreements is more than a policy shift; it is a reckless abandonment of global responsibilities that puts every American at risk.

[C40 Cities @c40cities]

Here is the message to #COP30 from mayors and local leaders from all over the world - and what we need to move from negotiation to action.

[Kate Johnson @katej07]

I am so proud to work on behalf of the inspiring @c40cities Mayors and the more than 50 cities from the US and Canada that are in Rio for the Local Leaders Forum and C40 World Mayors Summit.

[C40 Cities @c40cities]

Tomorrow, over 300 mayors will come together for the 2025 World Mayors Summit.

On the eve of COP30, local leaders will share how they are rapidly cutting emissions whilst delivering good green jobs, affordable housing, cleaner air, and safer places to live.

Watch it here: https://t.co/CgsN8bFWQ2

#WMS25

[C40 Cities @c40cities]

Tomorrow, over 300 mayors will come together for the 2025 World Mayors Summit.

On the eve of COP30, local leaders will share how they are rapidly cutting emissions whilst delivering good green jobs, affordable housing, cleaner air, and safer places to live.

Watch it here: https://t.co/CgsN8bFWQ2

#WMS25

[C40 Cities @c40cities]

"It’s mayors that have been getting on with the job, delivering bold, ambitious policies that make a difference."

@sadiqkhan & @eduardopaes on how mayors are leading the climate fight & delivering results in @NewStatesman

https://t.co/2pvSJAl0sn

[C40 Cities @c40cities]

Mayors have arrived at Climate Week NYC to showcase how cities are stepping up on climate.

From cutting fossil fuels and scaling up clean energy to creating good green jobs and protecting communities, local leaders are proving what’s possible when action meets ambition.

[Martin Austermuhle @maustermuhle]

It’s fair to say that “I don’t care what they think” has been the prevailing mentality amongst many in Congress and other positions of power about D.C. residents since, well, about the time the city was founded.

[Mayor Muriel Bowser @MayorBowser]

We have to be clear about our story, who we are, and what we want for our city.

[C40 Cities @c40cities]

🌎 The C40 World Mayors Summit is back! 🌎

This November, on the eve of COP30, the Mayors of London and Rio de Janeiro will bring together cities delivering urgent, fair and ambitious climate action.

In Rio de Janeiro, C40 mayors will:

💡 Highlight bold local solutions
💰 Mobilise climate finance
🎯 Align local action with global goals - from tripling renewable energy by 2030 to improving public health and cutting emissions.

The summit is part of the COP30 Local Leaders Forum, co-hosted by @BloombergDotOrg and the @Cop30noBrasil Presidency.

Find out more: https://t.co/P1wBDpycZr

[C40 Cities @c40cities]

Behind every climate solution is a community and a city that dared to lead.

Watch what happens when local action meets global ambition.

#C40at20

[Kate Johnson @katej07]

Thank you @CityofMiami for hosting our @c40cities for an inspiring workshop on heat resilience. We appreciated hearing about your initiatives to keep Miami cool and seeing your beautiful city by fire boat!

[City of Miami @CityofMiami]

🌍 The City of Miami co-hosted a 3-day workshop with our network partner @c40cities, focusing on extreme heat and climate resilience. Delegates from around the world joined us to share solutions. #ClimateAction #MiamiHeatPlan

[Kate Johnson @katej07]

@Neurophysik @MaxDavidBouchet @MeridianIntl Congratulations Max!

[Kate Johnson @katej07]

Cleaner energy, lower energy costs, and new jobs. A win-win-win from @c40cities @ChicagosMayor!

[Mayor Brandon Johnson @ChicagosMayor]

Powering our airports, libraries, streetlights, and more with 100% renewable energy—thanks to the Double Black Diamond solar installation. For Chicago, that means emissions cuts equivalent to taking 62,000 cars off the road each year. Clean energy. New jobs. #ClimateAction

[Kate Johnson @katej07]

@MayorofSeattle is once again proving that what is good for the planet is good for people. Cities across the U.S. and around the world are leading the way to a better future by delivering action that tackles climate change and improves lives. https://t.co/8i1MYfETyG

[Mark Watts @MarkWatts_]

Sylvester Turner was a champion for Houstonians, working people, and the climate.

With kindness and heart, he led the way forward, creating Houston's first Climate Action Plan and implementing policies to improve the health, safety, and economic stability of his constituents.

@c40cities joins with his family, friends, and leaders around the world in mourning his passing, and sharing our deep appreciation for his tireless work to improve our world.

https://t.co/1ZiELKUD8g

[Kate Johnson @katej07]

"“My mission is to make Philadelphia the safest, cleanest, greenest, big city in the nation, with economic opportunity for all." @PhillyMayor

[The Climate Mayors @ClimateMayors]

Mayor @JustinMBibb, @MayorSPH, Mayor Evans, & @KateMeisWright at our Public Safety Working Group with @C40Cities & @USDN! Public safety & climate action go hand-in-hand. Investing in climate solutions keeps our cities safe, resilient & thriving for all.🌱

https://t.co/WAYLq1xaWo

[Kate Johnson @katej07]

Join me tomorrow @IIEPGW to discuss local climate action as the role of national governments around the world continues to evolve. I am looking forward to the conversation with @Matt_Eldridge and @ChasCadwell. Details below 👇

[IIEP at GWU @IIEPGW]

Join us next Tuesday for our event, "Investing in Local Climate Action: The Evolving Role of National Governments." Our speakers @katej07, @Matt_Eldridge, & @ChasCadwell will discuss local governments and cities' role in addressing climate issues.
RSVP: https://t.co/XOakbWwFRP

[Kate Johnson @katej07]

Thanks for having me for this very timely talk @IIEPGW. Come join the conversation!

[IIEP at GWU @IIEPGW]

Feb 25th: Join us and @katej07, Head of US Federal Affairs at @c40cities, to discuss the evolving role of national governments in addressing #climate issues.

RSVP: https://t.co/XOakbWwFRP

[IBEW @IBEW]

"Repealing the federal investments that are propelling the U.S. to the forefront of the clean energy competition would set our country back and threaten the livelihoods of the millions of Americans." - Alton Mosely, #IBEW Local 508 https://t.co/LAH26BMr4u

[Mark Watts @MarkWatts_]

Trump’s decision to abandon the Paris Agreement is a gross dereliction of his duty as a world leader.

Despite this act of climate vandalism, American mayors like @MayorGallego @ChicagosMayor will continue to build a green economy & reduce emissions.

📰 https://t.co/JyTUmMwnZk