INTERVIEW-Cancun talks will not see big climate deal-EU

* Cancun will be stepping stone to talks in 2011

* EU does not see gap when Kyoto Protocol expires

By Nina Chestney

BONN, Aug 3 (Reuters) - A U.N. summit in Cancun, Mexico, at the end of the year will not result in a new climate treaty to succeed the Kyoto Protocol, the co-head of the European Union's climate delegation said in an interview on Tuesday.

"It will not be the big deal. Hopefully it will be a big step forward to the deal," Artur Runge-Metzger told Reuters.

The Kyoto Protocol was agreed in 1997 to reduce greenhouse gases emitted by developed countries to at least 5 percent below 1990 levels by 2008-12.

Talks in Copenhagen last year failed to nail down a legally binding agreement to succeed the pact and talks this year have shown slow progress.

Some elements of a new climate treaty's architecture such as technology transfer, adaptation, the monitoring, reporting and verification of emissions reductions should emerge at the Cancun summit, Runge-Metzger said.