Bloomberg Philanthropies

Let’s create a future where the healthy choice is the easy choice.

What happens when cities think bigger? The 24 winners of the 2025-2026 Bloomberg Philanthropies Mayors Challenge are turning bold ideas into real impact around the world. From safer, greener streets in @belfastcc to repairing sewer lines in @LCGtweets and rethinking food access in @cityoftoronto, @AlcaldiadeMed, and Budapest, these cities are building smarter systems, stronger communities, and more equitable futures. This isn’t just innovation—it’s transformation at scale. And it’s only the beginning.

The proportion of adults ages 18-54 who died of a severe first heart attack rose 57% between 2011 & 2022. Our Cardiovascular Health Initiative, in partnership with @ResolveTSL, is reducing preventable deaths from heart attacks & strokes all around the globe.

A little luck, a lot of impact 🍀

Tomorrow’s skilled trades workforce is training today. Students at @followNOCC are preparing for high-wage, in-demand careers in HVAC, welding, carpentry, and electrical work. Learn more about our support for career and technical education nationwide: bloombg.org/4rxczTi

Air pollution can be all around us, even if you don’t always see it or smell it, putting your heart, lungs, and even your brain at risk. Clean air matters. Through our @BreatheCities initiative, we’re supporting ambitious clean air action around the globe.

The countdown to Bloomberg CityLab 2026 is on. ⏰ Together with the @AspenInstitute, #CityLabMadrid will convene mayors, policymakers, and innovators from around the world to share solutions on AI, housing affordability, and rebuilding trust in government. Learn more about this year’s summit: bit.ly/47jXPji

This International Women's Day, we're celebrating trailblazing partners who are pushing progress forward and improving lives around the world. #IWD26

We nearly eradicated polio, but it’s making a comeback in Africa, Europe and the Middle East. The @CDCgov issued a Level 2 global Travel Advisory this week. Take a look to see if your spring break destination is impacted — and make sure you’re vaccinated.

Ultra-processed foods are everywhere - and they’re linked to obesity and other preventable diseases. On #WorldObesityDay, learn how we’re working with cities and countries around the world to help people move toward healthier diets and stronger public health policies.

70 cities. One shared goal: Healthier lives. The 2026 Partnership for Healthy Cities Summit will bring leaders from around the world together in Rio de Janeiro March 30 - April 2 to exchange solutions to reduce health risks and build healthier communities. bit.ly/46DdsC7 #cities4health #CiudadesSaludables

From the classroom to hands-on learning, students at Northwell School of Health Sciences are already stepping into their future. 🩺 Learn more about how this school—supported by our initiative to expand healthcare high schools nationwide—is giving students a clear path to stable, in-demand careers: bloomberg.org/education/supp…

“The most effective city halls are bold, creative, and proactive in solving problems and meeting residents’ needs.” The 2025–2026 Mayors Challenge winners are showing how innovation drives meaningful change.

What can $1M and a determined city hall do? A lot more than you think. 👀 From turning cow dung into energy-saving rooftop paint, to using AI to route surplus food to families, our 2025–2026 Mayors Challenge winners aren’t just launching projects — they’re reshaping the systems residents rely on. Meet our 24 winning cities and learn more: bloombg.org/mayorschallenge

Our Lead Poisoning Prevention Initiative is working to protect hundreds of millions of children around the world from the devastating, life-long health impacts of lead exposure.

Mardi Gras at @followNOCC 💜💛💚 Behind every king cake, hands-on learning and real-world industry exposure help Culinary Arts students gain the skills, certifications, and experience needed to enter high-wage, high-demand roles. Learn more about our support of career and technical education programs nationwide: bloomberg.org/education/supp…

Happy International Day of Women and Girls in Science! 🔬✨ At healthcare-focused high schools supported by Bloomberg Philanthropies, girls across the country are learning alongside peers, gaining real-world skills, and breaking barriers to family-sustaining careers. Here’s to the next generation of women shaping the future of healthcare and STEM. 💪

Americans are living longer than ever. A new report from the @CDCGov finds that life expectancy in the U.S. hit an all-time high in 2024. The Bloomberg @AmericanHealth Initiative is working to increase life expectancy - learn more: americanhealth.jhu.edu

With the world’s eyes on Milan this winter, it’s a moment to spotlight the work that’s been shaping the city for years. From supporting clean air and healthier streets to greener neighborhoods, safer cycling, and vibrant public areas, our long-standing programs are helping build a Milan designed for people.