UK smoothie company Innocent is once again teaming up with Carbon Clear in the UK to launch another Buy One Grow One Tree campaign, following the success of last year's.

The campaign, to take place next month, will see Innocent grow a tree in one of Carbon Clear's projects in India for every carton of the smoothie sold and registered.

Last year the project saw 164,020 trees planted in rural India, which Carbon Clear said "provided food and medicine, shelter for secondary crops and reduced soil erosion".

As an incentive for those who register lots of trees, Innocent is offering prizes of  'grow your own' herb boxes, an extra night in an organic B&B in the countryside or an opportunity to win a year's supply of smoothies.