Global Catastrophic Risks 2021. The Global Challenges Foundation has released Global Catastrophic Risks 2021: Navigating the Complex Intersections, its fifth annual report on global risks. This report focuses “on the complex interconnectedness between different risks and the need to build more holistic global approaches to tackle them.” Several subject matter experts have convened to provide risk assessments on a variety of potential global catastrophes, hoping to find “solutions to fill the gaps in our systems of global cooperation.”