COP29, this year's biggest environmental conference, is now underway. Here is how leaders from around the world are coming together to advance global climate efforts.

United Nations Secretary-General Antonio Guterres told world leaders at the COP29 summit on Tuesday to "pay up" to prevent climate-led humanitarian disasters, and said time was running out to limit a destructive rise in global temperatures.

BAKU (Reuters) -World leaders are speaking at the U.N. climate summit in Baku on Tuesday where United Nations Secretary General Antonio Guterres has told them to "pay up" to prevent climate-led humanitarian disasters.

The U.N.'s chief tells world leaders at COP29 to 'pay up' or face 'disaster for humanity':::: Baku, Azerbaijan:: Antonio Guterres, U.N. Secretary General"The sound you hear is the ticking clock. We are in the final countdown to limit global temperature rise to 1.