Lost Forest: why is BrewDog’s green scheme causing controversy?

Firm has pledged to plant huge forest in Scotland, but some of its environmental claims have raised eyebrows

• Corporate tree-planting drive in Scotland risks widening rural inequality'

It is a typically eye-catching boast by the great provocateur of British brewing. James Watt, co-founder of the beer company BrewDog, pledged to plant the biggest ever" forest in Scotland to help regenerate ancient woodlands that once carpeted the Highlands.

BrewDog's Lost Forest would stretch over a staggering" 50 sq km (19 sq miles), Watt said, and involve millions of trees. One promotional film said the forest would be capable of sequestering up to 550,000 tonnes of CO₂ each year". Good soundbites, but not entirely accurate.