Amb. Mark Andrew Green (ret.) became President & CEO of ONE in May 2026, bringing decades of experience in public service, diplomacy, development, and advocacy.
But titles only tell part of the story.
From teaching in a village in Kenya to serving as U.S. Ambassador to Tanzania, from helping advance landmark global health initiatives to leading some of the world's most influential development institutions, Mark's career has been shaped by a simple belief: everyone deserves the opportunity to build a better future.
We asked Mark about his journey, what brought him...
Arielle Witter
An Ebola outbreak has been confirmed in eastern Democratic Republic of Congo (DRC), with cases also reported in neighboring Uganda. The outbreak involves the Bundibugyo strain of Ebola virus disease, a rarer strain for which there is currently no approved vaccine or targeted treatment.
As health authorities work to contain the outbreak, it is also a reminder of why strong, well-funded health systems are essential to protecting communities and preventing future health emergencies. The current Ebola outbreak is also a reminder that pandemic threats remain ever-present....
Security spending across OECD countries has become increasingly one-dimensional. In response to great-power rivalry and acute conflicts - from Ukraine and Gaza to Sudan - governments have sharply expanded military budgets while scaling back the very investments that help prevent crises from emerging in the first place.
Our new report, The Security Paradox, shows that heavily prioritizing defense spending while underfunding development and diplomacy is not only insufficient, but it also actively undermines long-term security.
Using the established 3D framework—Defense, Development, and...
When most people think of Africa, snow isn’t the first thing that comes to mind.
And yet, at the 2026 Winter Olympics, 14 African athletes will be competing across the slopes, ice, and more — representing countries from South Africa to Eritrea, Madagascar to Benin.
For a continent where snow is genuinely rare, that presence is extraordinary. And it tells a bigger story about opportunity, ambition, and how Africa shows up on the global stage.
Here are the African athletes who are representing their countries at the 2026 Winter Olympics:
South...
Breaking stigma is essential to expanding access to health care — and that’s exactly what our Futuremaker, Taonga Banda, is doing in Lusaka, Zambia.
With support from the Global Fund, Taonga founded Pink Girls, a community-led program that empowers and educates adolescent girls and young women living with HIV/AIDS. In Zambia, adolescent girls and young women represent a disproportionate share of new HIV infections, making stigma reduction, education, and youth-centered health services critical to ending the epidemic.
Born HIV-positive herself, Taonga...
Every child deserves a safe place to grow, learn, and simply be a child — a belief that drives Nokuthula Heath’s work at Zoë-Life in Durban, South Africa.
Through Zoë-Life’s community-led health model, Nokuthula supports children living with HIV and tuberculosis (TB) while also addressing childhood trauma. By combining health care, psychosocial support, and education, Zoë-Life helps children and families navigate complex health challenges with dignity and care.
Founded in Durban, Zoë-Life is a powerful example of how local leadership can...
Books are a great way to learn more about cultures, identities, and much more. That’s why we want to help you add a few more to your summer reading list.
For Africa Day this year, we asked our ONE Champions and staff about what books resonated with them when it came to resilience, innovation, leadership, and African identity. Their recommendations did not disappoint — here are 7 books to read by African authors to learn more about African identity, culture,...
Vaccine are one of humanity’s greatest achievements, but their distribution is not equal.
In Africa, 98.9% of the continent’s vaccine supply is produced outside of the continent. The COVID-19 pandemic exposed this weakness: During the COVID-19 pandemic, this became a big issue as rich countries monopolized vaccines. Wealthy nations monopolized doses, African countries were left waiting, and vulnerable.
In 2021, the African Union and Africa CDC set a bold goal to prevent this from happening again. They set out to produce...
Vaccines are one of humanity’s greatest achievements; they save six lives every minute! Thanks to vaccines many diseases are now preventable today.
Here is a closer look.
1. Smallpox
At one point in history, smallpox was “one of the most devastating diseases to humanity.” With the first cases dating as early as 1350 BCE, the disease caused millions of deaths.
But in 1796, Edward Jenner created the smallpox vaccine — the first successful vaccine to be developed. Today, thanks to the power of...
Investments in international aid do a lot of good – from protecting people in vulnerable situations to fostering economic growth. But recent cuts to international aid, including the US pause to almost all international aid for 90 days, the UK’s recent cuts to international aid, and others, hurt millions of people globally. As is all too often the case when crisis strikes, women and girls will face the harshest consequences.
Dr. Stellah Bosire, the Executive Director and Founder of...