On 6-7-2010, I purchased 1,000 carbon credits through Emerald Knight costing £7,500, on 23-11-2010; these credits were sold on my behalf for £9,750, giving me a return of 30 %. I found the service provided by Emerald Knight to be efficient and friendly, the return was achieved over a shorter period than was originally advised. I recommend Emerald Knight to other investors based on their performance.