An "alarming" rate of Arctic Sea ice melt and "far-reaching changes" to the Earth from climate change follow a year of extremes, the World Meteorological Organization (WMO) said on Wednesday as the third day of climate negotiations take place in Doha, Qatar.

The WMO statement comes a day after the UN Environment Program (UNEP) warned that the looming release of methane in the Arctic could push the world past a "tipping point."

"The extent of Arctic sea ice reached a new record low. The alarming rate of its melt this year highlighted the far-reaching changes taking place on Earth's oceans and biosphere," Michel Jarraud, head of the WMO, an agency of the UN, stated on Wednesday.