Norton Rose and Allen & Overy (A&O) have bagged roles on the formation of the biggest private fund created to trade in carbon dioxide emission credits.

The two firms are advising on boutique investment bank Climate Change Capital's (CCC's) $830m (£439.4m) fund formation. The bank has taken three months to raise the $830m and expects to raise more than $1bn (£529m) by its second close.

Norton Rose advised CCC on the fund's formation with energy partner John Wood leading. The deal is the first instruction for Norton Rose by CCC, which has traditionally used Baker & McKenzie. It won the instruction from CCC after pitching earlier this year and worked with CCC general counsel Anthony Hobley on the deal.