Entrepreneur, philanthropist, UN Special Envoy on Climate Ambition & Solutions, WHO Amb. for NCDs & Injuries, mayor of NYC, father, grandfather, and data nerd.
Joined October 2008
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This Veterans Day, I had the chance to catch up with some of the veterans at @Bloomberg and @BloombergDotOrg and hear what this day means to them. Their service, leadership and courage make our company—and our country—stronger.
I'm grateful to everyone who has served.
Congratulations to @PattiHarris on being named to the 2026 #TIME100Climate list!
Your leadership on climate action and ocean conservation continues to help advance the bold solutions our planet needs. 🌍
Congratulations to Bloomberg Philanthropies CEO @PattiHarris on being named to the @TIME 100 Climate list, recognizing 100 of the world’s most influential leaders driving climate action. 🌎
Under Patti’s leadership, Bloomberg Philanthropies has helped advance ambitious efforts to protect the ocean, accelerate the global clean energy transition, and combat air pollution. At a critical moment for global climate action, she continues to champion bold solutions, strengthen environmental commitments, and drive meaningful progress on some of the world’s most pressing challenges.
bit.ly/4BTDmiT
ALT A headshot of Patti Harris on a mockup of TIME's cover
In the time I've known Ken Chenault, he's been endlessly optimistic about the possibilities ahead and unflinchingly honest about the challenges that might stand in the way. Those qualities have defined the pathbreaking career and inspiring life he wrote about in his new memoir, "Equal to the Task." We were glad to celebrate its release at @BloombergDotOrg, where Ken helps shape and advance our mission as a board member.
“Twenty-six years after a chance seating assignment, Mike Bloomberg and Diana Taylor have married. The longtime couple exchanged vows today in a small, private ceremony at their home on the Upper East Side, joined by family, including his daughters, Emma and Georgina. The two first crossed paths when they sat next to each other at a Citizens Budget Commission meeting while he was first running for Mayor.” - Spokesperson for Mike Bloomberg
Warm wishes to everyone celebrating Diwali. May the Festival of Lights bring joy, togetherness, prosperity and a bright year ahead.
In some of the country's most competitive congressional races, @MomsDemand Action volunteers ran — and won — helping to establish a gun sense majority.
To keep the momentum going, I'll be matching donations to @Everytown’s life-saving work until midnight on November 10. Now's the time to double down and advance our fight for gun safety. etwn.us/4z8LOIB
Congratulations to Rep. @HakeemJeffries, who will make history as the next Speaker of the House — and the first from New York City. I’m especially glad that so many @MomsDemand Action volunteers who stepped up to run won. I was honored to support their campaigns, and they helped prove that voters across the nation are looking for common sense solutions to the challenges facing the nation.
Congratulations to @MomsDemand Action volunteers who stepped up to run for Congress in purple districts — and won. I was glad to support their campaigns, and they helped prove that voters – from Michigan to Florida, and from Arizona to Iowa to Pennsylvania – want common sense gun safety laws that protect families and communities.
VICTORY: Voters have elected a Gun Sense Majority to the US House! Our @MomsDemand and @StudentsDemand volunteers are a political powerhouse who helped make it possible to secure the majority we need to protect our life-saving progress on gun safety at the federal level.
Join us for our next movement call this Thursday at 8 pm ET for an elections debrief to celebrate our victory and discuss what comes next: etwn.us/4ipFI1m
Congratulations to Georgia’s next governor, @KeishaBottoms. I first met her when she joined @BHcityleaders in 2018, and I was glad to support her for the same reason so many Georgians did: her track record as a pragmatic and battle-tested mayor of Atlanta will help her succeed as a chief executive who uses facts and data to govern effectively.
Democracy only works if we vote - and this election is a big one. Make your voice count. If you haven't already, go vote!
India is showing the world that clean energy and economic growth go hand in hand.
In a new op-ed for @htTweets, India's Minister of New and Renewable Energy, @JoshiPralhad and I explain why India's progress matters – and what other countries can learn from it. bit.ly/4szBCXS
Mike Bloomberg retweeted
India's clean energy transition is gathering pace, with solar power playing a growing role in meeting the country's energy needs.
@MikeBloomberg and Union Minister Shri @JoshiPralhad write about the growth of renewable energy, the expansion of rooftop solar and investments in storage and transmission.
They highlight how this shift is helping reduce electricity bills, create jobs and strengthen energy security.
India’s #RenewableEnergy revolution is inspiring the world with a roadmap for a cleaner, more sustainable future.
In my article for @htTweets, I highlight how India’s #CleanEnergy transition is driving growth and strengthening energy security under the visionary leadership of Hon’ble PM Shri @NarendraModi ji.
As we prepare to host the Bharat Renewable Energy Summit 2026 and the 9th ISA Assembly, India’s success offers valuable lessons for the world.
#BRESummit2026 #ISAAssembly
Had a great tour of the newly opened William and Charlotte Bloomberg Public Science Common at the @museumofscience.
It's amazing to see the vision for this space brought fully to life, and to experience all that it will offer to generations of visitors.
As a kid, the Museum of Science was one of @MikeBloomberg's greatest teachers - a place where he learned to ask questions, explore big ideas, and discover the world around him.
Earlier this week, he joined Boston Mayor Michelle Wu, Cambridge Mayor Sumbul Siddiqui, and Gwill York President of the Museum of Science Tim Ritchie for a tour of the new William and Charlotte Bloomberg Public Science Common.
Through immersive experiences and interactive programming exploring topics like artificial intelligence, public health, climate change, and space exploration, the new space will bring science to life in exciting new ways.
Together, we're helping spark that same sense of curiosity and inspire a lifelong love of science for generations to come.
Today I was glad to present my friend Hank Paulson with the Pete Peterson Leadership Excellence Award at the @EconClubNY. Under his leadership, @GoldmanSachs gave NYC a major vote of confidence after 9/11 by moving forward with a new headquarters near the World Trade Center. As Treasury Secretary, he helped guide the U.S. through the worst financial crisis since the Great Depression. And for many years, he has been a champion for climate action and environmental conservation. We're lucky to have him on the board of @BloombergDotOrg. In the private, public, and nonprofit sectors, his leadership has made an enormous difference.
As a kid, I would spend my Saturdays at the @museumofscience, spellbound by what I learned about science and the world around me. The William and Charlotte Bloomberg Public Science Common is designed to spark a love of learning in the next generation.
Thank you to Boston Mayor Wu, Cambridge Mayor Siddiqui, @museumofscience President Tim Ritchie, and everyone who joined us to celebrate its recent opening.
What a morning!
@MikeBloomberg, Boston Mayor Michelle Wu and Cambridge Mayor Sumbul Siddiqui joined Gwill York President of the Museum of Science Tim Ritchie for a tour of the new William and Charlotte Bloomberg Public Science Common.
From immersive journeys through space and the deep ocean to interactive science programming, the new 10,000-square-foot space brings science to life in exciting new ways - sparking curiosity, inspiring discovery, and making science more accessible to all.
Other than my parents, William and Charlotte, the @museumofscience was my greatest early teacher. I'm proud to honor them with the opening of this space for interaction, exploration, and growing curiosity.
In many ways, the journey to where I am today started here, counting the rings in this Sequoia tree at the @museumofscience.
This is where my interest in science and problem solving was sparked, and it's my hope that the newly opened William and Charlotte Bloomberg Public Science Common will inspire similar journeys for generations of visitors to come.
