You're listening to the Global News Podcast from the BBC World Service.

Hello, I'm Oliver Conway, and we're recording this at 13 hours GMT on Tuesday, the 6th of May.

A big setback for the man expected to become Germany's next leader, Friedrich Merritt,

fails to win enough support in Parliament and now faces a crucial second vote.

Dron attacks close Moscow's airports days before a huge victory parade in the Russian capital.

And the UK-based food delivery app Deliveroo is taken over by the American firm DoorDash.

Also in the podcast, as Cardinals prepare for the conclave tomorrow, what kind of Pope

the Catholics want?

And we've changed the ocean so profoundly that the next hundred years could either witness

a mass extinction of ocean life or a spectacular recovery.

Days before his 99th birthday, David Atomera talks about the threat to our seas.

Now, it was supposed to be a formality, but the man due to be sworn in as the next leader of

Germany suffered a shock defeat in Parliament on Tuesday morning. Friedrich Meertz fell six votes short in his bid to become Chancellor,

meaning some in his carefully constructed coalition had failed to back him.

The result is unprecedented in post-war German political history

and could damage the conservative leader as he tries to rebuild the floundering economy

and see off the challenge over immigration from the far-right

AFD. As we record this podcast, a second vote is due to be held, as we heard from our correspondent

Jessica Parker at the Parliament in Berlin. Well, we've just been hearing from party figures

from the SPD and the CDU, the two main parties in what was supposed to be this governing coalition.

I'm stood here in the Bundestag around this time today.

Friedrich Mertz was supposed to have been voted in, gone to meet the president, come back,

...