This is the Global News podcast from the BBC World Service.

I'm Jean-Aat Jalil, and in the early hours of Sunday the 17th of November, these are our main stories.

Joe Biden has held what's likely to be his last meeting as U.S. president with his Chinese counterpart,

Xi Jinping, as concerns grow about a possible U.S.-China trade war.

The Spanish Weather Agency has contradicted Valencia's regional leader, saying it had warned him about floods last month that claimed more than 200 lives.

Eight people have been killed in a mass stabbing at a college campus in eastern China.

Also in this podcast,

The Near Side and the Far Side of the Moon are very different,

and this is the first samples from this far side,

and they reveal that volcanism occurred as recently as 2.8 billion years ago on the far side.

The discovery of ancient volcanoes on our moon.

The leaders of the world's two biggest economies, the U.S. and China, have met on the sidelines of a summit in Peru, a day after both

leaders warned of turbulent times ahead. It's likely to be the last time that President Joe Biden

and his Chinese counterpart Xi Jinping meet in person before Donald Trump takes over from Mr Biden in January.

Mr. Xi told Mr Biden that China would, quote, strive for a smooth transition in relations with the US.

Mr Trump has threatened to impose tariffs of up to 60% on Chinese imports at a time when China's

economy is already struggling.

Steve Sang, the director of the China Institute at Soas University here in London,

says nothing will change now until Mr Trump takes over.

China will not make any concessions to the Biden administration now.

If Xi Jinping is planning to make any concessions to the United States, he will offer them to Donald Trump after Donald Trump became president and not to the outgoing President Biden now.

A correspondent in Washington, Rowan Bridge, told us more about the meeting.

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