The invasion of Ukraine hampered collaboration with Russian climate scientists. That's bad news for our collective ability to understand, and prepare for, a hotter planet.
Zelenskyy is headlining a frenzied first full day of the World Economic Forum's annual meeting in the Swiss resort, where officials from the U.S., EU, China and Middle East will also be prominent.
Ukraine's economy is battered by Russia's full-scale invasion, but its consumer economy is still running — especially the country's popular sushi restaurants, where cream cheese is a key ingredient.
In a gesture of wartime support, the European Union has exempted Ukrainian truckers from EU limits on how many drivers can enter Europe. Polish truckers say that's destroying their businesses.
Ukrainian authorities said 230 Ukrainian prisoners of war returned home in the first exchange in almost five months. Russia's Defense Ministry said 248 Russian servicemen have been freed.