Leaders of the world's biggest economies are gathering in New Delhi for the annual G20 summit. On the agenda are some of the world's most pressing issues.
They include climate change, and food and energy security undermined by Russia's invasion of Ukraine.
India's capital has been spruced up for the weekend talks. Near the conference center, billboards show Prime Minister Narendra Modi, welcoming the visitors.
The Group of Twenty comprises 19 countries, including major and emerging economies, and the European Union. The bloc's members account for over 80 percent of the global GDP and about two-thirds of the world population.
Japanese Prime Minister Kishida Fumio flew in after wrapping up his meeting with ASEAN leaders in Jakarta.
He plans to continue explaining Japan's position on the safety of releasing treated and diluted water into the ocean from the crippled Fukushima Daiichi nuclear plant. He aims to boost international understanding of the move.
The Fukushima Daiichi plant suffered a triple meltdown in the 2011 earthquake and tsunami. Water used to cool molten fuel has been mixing with rain and groundwater.
The accumulated water is being treated to remove most radioactive substances, but still contains tritium. Before releasing the treated water into the sea, the plant's operator dilutes it to reduce tritium levels to about one-seventh of the World Health Organization's guidelines for drinking water.
US President Joe Biden is scheduled to sit down with Modi for a bilateral meeting before attending the summit. Biden hopes to take the opportunity to work with "like-minded partners." His administration has been trying to forge closer ties with India to counter China's increasing global influence.
This year, for the first time, Chinese President Xi Jinping is skipping the meeting. Instead, Beijing is sending Premier Li Qiang. China hasn't given a clear explanation of Xi's absence but says it has always placed high importance on the G20 and Li's presence will strengthen the group's solidarity and cooperation.
Russian President Vladimir Putin is another no-show.
Moscow says Putin will not deliver a video address to the summit. The Kremlin says Foreign Minister Sergey Lavrov will shoulder his country's work at the talks.
The G20 is split over the war in Ukraine.
India wants the summit to conclude with a joint communique, mentioning Ukraine.
The focus is on whether the leaders can narrow their differences and reach a consensus and whether India can steer that difficult task. Another job for the country holding the G20 presidency is representing the interests of the emerging economies, collectively known as the Global South.