We're on a highway to climate hell - U.N. chief

STORY: The speech set an urgent tone as governments start two weeks of talks on how to avert the worst of climate change, amid the distractions of Russia’s war in Ukraine, rampant consumer inflation and energy shortages.

He called for a pact between the world's richest and poorest countries to accelerate the transition from fossil fuels, and the delivery of funding to ensure poorer countries can reduce emissions and cope with the impacts of warming so far.

Despite decades of climate talks, progress has been insufficient to save the planet from excessive warming as countries are too slow or reluctant to act, he noted.