UPDATE 3-UN's Ban urges business to back climate policies

* UN Sec-Gen tells business not to block climate policies

* Ban Ki-moon says U.S. climate bill needs to go further

* Business leaders call for clear, long-term measures

* China hopes for successful climate deal

(Adds Ban Ki-moon interview, Chinese climate policy official)

By Anna Ringstrom and Gerard Wynn

COPENHAGEN, May 24 (Reuters) - Industry should play its part in the fight against climate change by persuading governments to aid carbon cuts rather than lobbying against them, the U.N. Secretary-General told a business conference on Sunday.

Business leaders met in Denmark to try to unite behind a common call for long-term climate policies, ahead of a U.N. conference in December meant to forge a new climate treaty to replace the Kyoto Protocol.

"For those who are directly or implicitly lobbying against climate action I have a clear message: your ideas are out of date and you are running out of time," U.N. Secretary-General Ban Ki-moon told a meeting of more than 500 business leaders.