Hello everyone and welcome to Ammanpur.

Here's what's coming up.

I think we are going to win this struggle, but the question is whether we'll win it in time.

From Brazil, a global climate summit with few heavy hitters.

Former Vice President Al Gore joins me on the leadership

gap in the critical fight against climate change. Then, inside El Salvador's mega prison, we look

at a new human rights report that tracks the treatment of Venezuelans deported by President Trump.

Plus, the idea that the country would be better off with a stronger presidency,

with fewer constraints, with fewer checks and balances. The Dick Cheney Doctrine, does it hold up?

Reporter Charlie Savage talks to Walter Isaacson about the life and legacy of America's most powerful, modern V. Welcome to the program, everyone

everyone. I'm Christiana Wannpour in London.

Indigenous protesters against deforestation have been making their voices heard in Belém, Brazil,

the site of the UN's major climate summit. Dozens of demonstrators had forced their way into the COP 30 venue and clashed with security guards

while carrying signs and shouting that their land is not for sale.

It is a signal of something we already know that tackling climate change and protecting the planet

is an enormous emotional and logistical challenge.

And what it requires is real leadership.

But the world's most powerful people aren't even at the conference.

Presidents Trump and G are no shows.

And so is India's Prime Minister Narendra Modi, all big polluters.

Meanwhile, the White House is doubling down on fossil fuels. One well-known

American trying to fill the leadership gap is the former US Vice President Al Gore. One of the

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