Linda Thomas-Greenfield on Russia, Sudan & the power of diplomacy

The UN, Russia, Sudan & the power of diplomacy: Ambassador Linda Thomas-Greenfield | GZERO Media

Can diplomacy solve the world’s most urgent crises?

GZERO World travels to UN headquarters in New York for a special conversation with US Ambassador to the UN Linda Thomas-Greenfield ahead of the United States taking over the presidency of the Security Council for the month of August.

The United States has a lot of priorities for the session, including food security, human rights, and Russia’s ongoing invasion of Ukraine. But with Russia a permanent, veto-wielding member of one of the world’s most powerful diplomatic bodies, how much can really get done?

“What Russia is doing undermines everything that the UN stands for,” Thomas-Greenfield told Bremmer in an interview with Ian Bremmer from the floor of the Security Council chamber. “They are undermining the work of this council by carrying out this unprovoked war on Ukraine.”

Thomas-Greenfield spoke with Bremmer about the contentious relationship with Russia, worries about the world’s food supply after the collapse of the Black Sea grain deal, and the urgency of addressing the ongoing humanitarian crisis in Sudan.

Can the countries of the world put aside their differences and competing interests to effectively deal with the most pressing international security challenges? And what else does the US hope to accomplish during its Council presidency in August?

Watch GZERO World with Ian Bremmer every week at gzeromedia.com/gzeroworld or on US public television. Check local listings.

More from GZERO Media

Across North America and Europe, blackouts are becoming more common, often hitting when the demand peaks or when the weather turns extreme. The surging demand for power and new energy sources are putting pressure on the energy systems. Meeting today’s energy needs takes a flexible, pragmatic, “all-of-the-above” approach — drawing on all fuels and technologies. Learn how Enbridge is delivering reliable, affordable energy in uncertain times.

Amir Seaid Iravani premanent representative of the Islamic Republic of Iran speaks during the UN Security Council on June 24, 2025 in New York City.
John Lamparski via Reuters Connect

It’s not clear yet how much the US attack on Iran's nuclear sites this weekend set back the Islamic Republic's ability to develop atomic weapons, but experts say the airstrikes almost certainly threw a bomb into something larger: the global nuclear non-proliferation regime.

A pie graph showing the percentage of Americans in favor of having a third major political party.
Ico Oliveira

Remember when Elon Musk threatened to start his own political party during his spat with Donald Trump? It’s unclear how many Americans would switch their political affiliation to a Musk-run party specifically, but a plurality agree that they’d like another major political party to rival the Democrats and Republicans.

Open Call is the heart of Walmart’s $350 billion commitment to US manufacturing, supporting products made, grown or assembled in America. The pitch event represents a unique opportunity for selected entrepreneurs to meet face-to-face with Walmart merchants and earn a chance to get their products on store shelves nationwide. Last year, finalists from across the country represented 48 states, with entrepreneurs from over half these states receiving deals. It’s all a part of Walmart’s investment in American jobs and communities. Learn more about Walmart’s annual Open Call.

Last week, Microsoft released its 2025 Responsible AI Transparency Report, demonstrating the company’s sustained commitment to earning trust at a pace that matches AI innovation. The report outlines new developments in how we build and deploy AI systems responsibly, how we support our customers, and how we learn, evolve, and grow. It highlights our strengthened incident response processes, enhanced risk assessments and mitigations, and proactive regulatory alignment. It also covers new tools and practices we offer our customers to support their AI risk governance efforts, as well as how we work with stakeholders around the world to work towards governance approaches that build trust. You can read the report here.