Expedition team explores peatland in Congo-Brazzaville
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Congo-Brazzaville peat bog is hailed a 'big discovery'

A vast peatland has been discovered in a remote part of Congo-Brazzaville.

The bog covers an area the size of England and is thought to contain billions of tonnes of peat.

Dr Simon Lewis from the University of Leeds said the peatland was a ''big discovery'' in terms of charting environmental change.

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