Hi, I'm Ed Butler and welcome to Business Daily from the BBC. Coming up today, is there a fix for

climate change that many of us have overlooked? A scientist is claiming that replanting forests could be our

best bet to save the planet. There's room for about 0.9 billion hectares of trees, which if they

grew to maturity, would store about

205 gigatons of carbon. It's about two-thirds of the carbon that remains in our atmosphere as a result

of climate change. So plant more trees. But how do you keep those new forests in place in the future?

If you reforest the area and you do nothing to give a job or a way to make money for these

small farmers, they will cut again everything.

All the trees you have planned.

Seeing the wood from the trees, Business Daily from the BBC.

Well, for today's show, I ventured out of our usual studio, into the rain and into a rain forest.

Well, perhaps not quite a rainforest, exactly.

But the closest thing we have here in central London or near to central London, this is the Palm House at the Royal Botanic Gardens at Q.

And I'm here with the Director of Science for this place, Dr. Alex Antonelli.

I want to talk generally about the forests of the world, Alex, I suppose.

But first of all, tell me exactly where we are and what it is we're surrounded by.

We are now in the Palm House of the Roboton Gardens Cue in southwest London.

And this is a hotspot of biodiversity because that's the largest collection of living plants in the world here in London.

Asian species, things from Queensland, species from South America where we're just

standing here in front of this bed, Southeast Asia, all over the planet.

All the rainforests of the world. They're piling up above me, up seven, eight meters, nine

meters tall. It's like a huge greenhouse. You can hear some birds. These are native birds,

...