By Tuvan Gumrukcu and Valerie Volcovici ANTALYA, Turkey, Nov 11 (Reuters) - UN Secretary-General Antonio Guterres told world leaders at the COP31 summit in Turkey on Wednesday that the slow international response to climate change so far had placed the world on a path to destruction. Governments must fight harder to preserve the planet for future generations, he said, in comments that set the tone for two days of rapid-fire speeches by world leaders at the UN conference on Turkey's Mediterranean coast.