German Chancellor Olaf Scholz pledged his government won't leave citizens freezing or unable to pay their energy bills but acknowledged Thursday that his country faces considerable challenges in the coming months.

Rising fuel costs sparked by Russia's war against Ukraine have put severe financial strain on many in Germany and beyond, raising concerns about a possible winter of discontent.

Landfills are releasing a significant amount of planet-warming methane into the atmosphere from the decomposition of waste, a study suggests.

Scientists used satellite data from four major cities worldwide — Delhi and Mumbai in India, Lahore in Pakistan and Buenos Aires in Argentina — and found that city-level emissions in 2018 and 2019 were 1.4 to 2.6 times higher than earlier estimates.

Ukrainian President Volodymyr Zelensky called on Western nations Thursday to provide more money to help Ukraine's military keep fighting nearly 5½ months after Russia invaded its neighbor.

"The sooner we stop Russia, the sooner we can feel safe," Zelensky said while addressing defense leaders at a Denmark conference aimed at strengthening financing for weapons, training and demining work in his country.

Greek authorities say a search and rescue operation is ongoing for a second day for dozens of migrants missing after the boat they were on sank in rough seas off a southeastern Greek island.

A Greek navy vessel and three nearby merchant ships were still searching Thursday for between around 30 to 50 people believed missing after the boat that had been carrying them from the Turkish coast of Antalya to Italy capsized in the early hours of Wednesday.

Pope Francis has met with a fourth group of transgender people who found shelter at a Rome church, the Vatican newspaper reported Thursday.

L'Osservatore Romano said the encounter took place Wednesday on the sidelines of Francis' weekly general audience. The newspaper quoted Sister Genevieve Jeanningros and the Rev. Andrea Conocchia as saying the pope's welcome brought their guests hope.

Imagine Dragons are touring the U.S. this summer and fall, which means frontman Dan Reynolds has to go to a lot of dark places.

The band is debuting songs from the second half of "Mercury," a double album of brooding and moody meditations on death and human frailty. Reynolds relives the pain at every show.

Metallica, Mariah Carey and The Jonas Brothers will headline a free concert in New York's Central Park next month marking the 10th anniversary of the Global Citizen Festival organized by the international nonprofit fighting extreme poverty.

The Sept. 24 event will also feature a concert across the globe in Accra, Ghana, with Usher, SZA and H.E.R.

Serena Williams wore her game face when she stepped out into the stadium for her first match since telling the world she is ready to leave professional tennis.

Greeted by a standing ovation, the 23-time Grand Slam champion didn't smile. She didn't wave. She took a sip from a plastic bottle as she walked in. Some folks in the crowd captured the moment with the cameras on their cellphones. Others held aloft handrawn signs — oh, so many signs — with messsages such as "Queen" or "Thank you."

Nick Kyrgios beat top-ranked defending champion Daniil Medvedev 6-7 (2), 6-4, 6-2 on Wednesday in the National Bank Open.

Krygios, the Australian ranked 37th, won last week in Washington for his seventh ATP Tour title. Medvedev won last week in Los Cabos, Mexico.

Brazil insisted that it won't play its suspended World Cup qualifying match against Argentina next month, arguing that the risks are too high ahead of the tournament in Qatar.

The qualifier nearly one year ago in Sao Paulo was stopped by local health officials after six minutes due to COVID-19 protocols regarding four Argentinian players.