On Wednesday, President Donald Trump spoke in front of international leaders in Davos, Switzerland. There, he touted his use of tariffs to disrupt the global trading system and spoke about his aspirations for acquiring Greenland without the use of force. We'll unpack some of the economic headlines. Then, we'll also discuss yesterday's sell-off of stocks and bonds and hear how Russia's war on Ukraine is impacting European airlines’ bottom lines.

People around the world are using AI more than Americans, a new poll finds. About 40% of adults in the U.S. told pollsters that they used generative AI in the last year. In Nigeria, the United Arab Emirates, and India, that number was about 85%. What's driving the divide? But first: a preview of markets before President Donald Trump's speech at Davos, and a look at the struggle between the Trump administration and the Fed.

From the BBC World Service: Tech billionaire Elon Musk has picked a fight with Michael O'Leary, the chief executive of Ryanair; after O'Leary said Ryanair wouldn't be offering Musk's Starlink satellite services, Musk floated the idea of buying Ryanair himself. Plus, Lufthansa — one of the world’s largest airline groups — says that airspace closures due to war zones are forcing substantial rerouting of flights, with the ban on using Russian and Ukrainian airspace creating detours of one to two hours.

Today is the second day of the World Economic Forum meeting in Davos, Switzerland. It's a meeting that attracts some of the world's most powerful people (and often protests). Among the biggest names are the heads of Microsoft and Nvidia, the chancellor of Germany, and — after a six-year in-person absence — President Donald Trump is returning to the forum. We'll outline what to expect. But first: a discussion of housing and tariffs.

The Supreme Court will hear oral arguments tomorrow in the case around President Donald Trump's bid to fire Federal Reserve Governor Lisa Cook over mortgage fraud allegations. Cook denies any wrongdoing, and she hasn't been charged with any crime. Federal Reserve Chair Jerome Powell is set to attend tomorrow's session. We hear about the case at hand and what's at stake. But first, we hear why houses in some areas could get more affordable this year.

From the BBC World Service: It's day two of the annual World Economic Forum in Davos, Switzerland, where President Donald Trump's goal of acquiring Greenland continues to preoccupy European leaders, as he attempts to project military and economic power over NATO allies. The president of the European Commission described fresh tariffs as a "mistake" and warned the response would be "unflinching." Also on this morning's program: a look at tourism in Japan and ghosting in the job market.

It's called the "lipstick effect." Consumers sometimes splurge on small luxuries — like cosmetics, accessories, and more — as a sort of rebellion against a bleak economic backdrop. And these indulgent purchases are expected to be big in the year ahead. Also: the toll tariffs have taken on the economy as Trump threatens more over Greenland and the impact of a growing number of millionaires in the United Arab Emirates.

President Donald Trump has made it very clear that he wants to purchase Greenland. Now, he's threatening to increase tariffs on eight European countries unless they agree to let the U.S. purchase the Danish territory, and the European Union is considering retaliation with its own tariffs on U.S. products. Also on the show: Europe is emerging as a major new destination for low-cost items from China.

From the BBC World Service: New data shows that China's economy grew by 5% last year. While positive, it’s not anywhere near the stellar growth figures China has had over years past, and the economy faces a weak housing market, a falling population, and ongoing trade tensions with the U.S. Plus, we examine what's driving the wealthy to the United Arab Emirates and how a boom in luxury real estate is changing Dubai.

International visitors to 11 U.S. national parks, including Yellowstone, Bryce Canyon, and Sequoia, now have to pay more to get in — as in, up to a $100 a head more. The fees will help national parks address maintenance backlogs running to more than $22 billion, but some worry that it'll dent visitor numbers and hurt “gateway communities” near the parks. Also: plans to cap credit card rates and energy prices.