World leaders have arrived at COP27 in Egypt as UN Secretary-General, Antonio Guterres tells delegates at COP27 that "we are in the fight of our lives".
More than 120 international leaders are anticipated at Cop27 in Sharm El Sheikh, Egypt.
This year's conference will address mitigation, adaptation, funding, and partnership.
Cop26 in Glasgow, Scotland, led to the Glasgow Pact, which pledged to reduce carbon emissions.
The UN says the globe is "doomed" unless wealthy and poor nations sign a "historic covenant."
Cop26 president Alok Sharma gave a speech to honor Egypt's takeover.