<prompt> Translate the following text to EnglishKwa mfano, kwa kiwango cha chini cha carbon, benki itaendelea kwa miaka miwili kwa kiwango cha chini cha 2015 au zaidi ikiwa kiwango cha chini cha 2015 kitaongezeka.  <response>: In the case of carbon, the bank would last another two years at the rate of drawdown in 2015, or longer if the drawdown declined. 