China said on Thursday it will not bow to pressure to rethink a key climate change treaty and was preparing to cope with a "gap" in the pact after 2012 if rich nations fail to add new greenhouse gas goals in time.

Envoys from 177 governments are holding week-long talks in the northern Chinese city of Tianjin on the shape of a successor pact to the Kyoto Protocol, the U.N.'s main weapon in the f