With hopes of a consensus eluding the Cancun climate meet, IPCC chairman R K Pachauri has urged host Mexico to work hard in pushing rich nations to put climate funds on the table. Apparently referring to delay of passage of US climate law, he said, there will be least expectations of a consensus this time at Cancun.UN Secretary-General Ban Ki-moon has already acknowledged that the December meeting might not produce the definitive agreement the world body is seeking. Talking to PTI, Pachauri said during his recent meeting with the Mexican leadership in the run-up to the crucial summit, he has cautioned them to be realistic and don't pitch expectations very high because that will not really work. Mr Pachauri, the head of the Noble-award winning Inter-governmental Panel on Climate Change (IPCC), however, said, he is looking forward for some limited agreements for concrete actions to control Green House Gases at the crucial meet slated to be held by the year-end. Most countries at the Copenhagen Summit last year signed an accord that called on governments to limit the rise in global temperatures to less than 2 degrees Celsius, but, without spelling out how to achieve this goal. Under the Koyto Protocol, industrialised nations are under obligations to take emission targets and provide climate funds to the developing nations for mitigation and adaption.