For generations, Brazil's indigenous groups lived in isolation, but the discovery of large diamond deposits in their lands has brought them more misfortune than wealth.
The National Union of Mineworkers (NUM) and the Chamber of Mines, which has been negotiating on behalf of the country’s main coal producers, will sign the agreement later today.
The decline in coal share prices has affected the pensions of millions of bus drivers, librarians, park attendants, school workers, housing officers and care workers, a new study from Platform London shows.