'A BBC documentary about socialite Robin Birley and his carbon credits business venture in Africa should never have been broadcast, an internal inquiry by the corporation has found. Millions of viewers were misled because the sympathetic documentary shown on BBC World News failed to declare that it was financed by a secretive trust that was linked to Birley.

The BBC acted in response to an Observer investigation into Birley's "philanthropy capitalism" venture in Mozambique. Taxpayers' money was used to subsidise poor farmers there to protect forests and plant trees that absorb carbon dioxide. Envirotrade, Birley's company, then sells "carbon credits" to celebrities and businesses wanting to offset their emissions. Customers who used Birley's venture to offset emissions included the agency that handles Brad Pitt and George Clooney.'

Read more: Carbon Credit Documentary Should Not Have Been Shown, BBC Admits