COP28 president Sultan al-Jaber pledged on Friday that he will work on making the Paris Agreement target of limiting global warming to 1.5 degrees above pre-industrial levels “within reach,” as United Nations (UN) chief Antonio Guterres warned that “Earth’s vital signs are failing.” Britain's King Charles also said the world was seeing “alarming tipping points being reached" and U.S. Secretary of State Antony Blinken cautioned that food insecurity will worsen with extreme weather events, while Brazilian President Luiz Inacio Lula Da Silva said that it was time to address the “slow-motion pace” of the planet’s decarbonization efforts.