Global catastrophe looms closer than ever as major powers abandon cooperation for aggressive nationalism. Russia, China and the United States have intensified dangerous competition, dismantled critical arms control frameworks, and allowed three regional conflicts involving nuclear powers to escalate while pursuing reckless policies on climate, biotechnology and artificial intelligence that accelerate existential risks. +++++Recommednations: renewed U.S.-Russia nuclear talks, efforts to prevent AI-driven biological threats, a shift toward expanded U.S. renewable energy development and multilateral discussions among the U.S., Russia and China on limits for military use of artificial intelligence