Officials say 477 people were killed and a quarter of a million people made homeless by the Philippines' worst typhoon this year

Philippine climate envoy Naderev Sano made an emotive appeal for action as the annual United Nations gathering hit deadlock on the issue of money for poorer countries' efforts to adapt to a warming world in the next few years.

Natural disasters are occurring more often and deadlier due to global warming.

"An important backdrop for my delegation is the profound impacts of climate change that we are already confronting. As we sit here, every single hour, even as we vacillate and procrastinate here, the death toll is rising."

Officials say 477 people were killed and a quarter of a million people made homeless by the Philippines' worst typhoon this year -- the kind of extreme weather event scientists believe will become more frequent as global temperatures rise.

The Philippines urged bickering UN climate negotiators in Doha on Thursday to take heed of the deadly typhoon that struck the archipelago this week and wake up to the realities of global warming.

Click on for the latest images from the disastrous Typhoon Bopha.