United Nations chief warned Monday that the world is facing a convergence of challenges unlike any in our lifetimes and expressed fear of a wider war as the first anniversary of Russia's invasion of Ukraine approaches. Antonio Guterres said experts who surveyed the state of the world in 2023 set the Doomsday Clock at 90 seconds to midnight the closest ever to total global catastrophe, He pointed to the war in Ukraine, runaway climate catastrophe, rising nuclear threats, the widening gulf between the world's haves and have-nots, and the epic geopolitical divisions undermining global solidarity and trust. Show us accelerated action in this decade and renewed ambitious net zero plans or please don't show up, Guterres said