Can the Amazon survive the Brazil economic boom?
Just a short post to say I'm deep in the Brazilian state of Mato Grosso, heading for the Amazon rainforest.
The plan is that next week, together with the BBC's economics editor Stephanie Flanders, we'll be broadcasting a series of reports on Radio 4, BBC-1 and online, in which we'll be looking in some detail at Brazil's extraordinary emergence as a major global economic power.
Is the growth sustainable? What's the environmental cost, particularly here in the Amazon, where there are still major concerns about deforestation and the potential impact of rapidly expanding agricultural production on global climate patterns.
And what about the 50 million Brazilians who still live below the poverty line? Are they seeing any of the benefits of this economic bonanza?
What about the woman I met just outside Rio de Janeiro, whose house has been bulldozed to make way for a new highway that's being built ahead of the 2016 Olympics?
What about the shanty town dwellers who live in the shadow of Rio's prime football stadium, now being rebuilt to be ready for the 2014 World Cup?
Yesterday I met a farmer here in Mato Grosso who was the happiest farmer I've ever come across. The farmers around here are major producers of soya, which is a main ingredient in animal feed - nearly half of Brazil's soya is exported to the rapidly growing market in China. Soya prices are now at record levels; what's more, the soil and climate here are so good that farmers can get two crops a year out of the same piece of land. In between the two crops, they plant cotton (and yes, cotton prices are also at record levels), and they graze cattle before selling them on to meat processors who turn them into beef for burgers.
All being well, my reports will be on air on The World Tonight next Wednesday and Thursday, and do listen out for Stephanie Flanders's pieces as well, on Radio 4 and on BBC TV news.