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

I'm Alex Ritzen and in the early hours of Friday the 4th of October,

these are our main stories.

Global oil prices have risen sharply after President Biden said he was discussing possible strikes by Israel on Iranian oil facilities.

As Israel's offensive in Lebanon continues, officials in the occupied West Bank say

an Israeli air strike on a refugee camp has killed at least 18 people.

Why scientists believe a global dengue fever crisis is being caused by climate change.

Also in this podcast, there would have been an extremely loud bang and then a tsunami as high as 800

meters tearing across the Atlantic Ocean that's as high as the world's tallest

building the Burcheleifer in Dubai.

Scientists discover the giant asteroid which killed off the dinosaurs was followed by a second impact.

Amid the continuing violence in the Middle East a new fear has emerged

the speculation grew that Israel might choose to hit Iran's oil production

in retaliation for Tuesday night's Iranian missile barrage.

President Biden didn't exactly calm matters when he told journalists that the U.S. was considering

the possibility of Israeli strikes on Iran's oil industry infrastructure.

Asked if he would support such action, he said we're discussing that.

And that was enough to spook the markets and push oil prices up 5% within a matter of minutes.

The BBC's economics editor Faisal Islam says that while other producers could make up any immediate

shortfall in Iranian oil production, the real threat to the

world economy lies elsewhere.

What does matter is if we are then on a path of spiraling escalation.

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