Biodiversity is crashing, tropical forests are disappearing, and coral reefs are dying. Seas are filling with plastics and chemicals are leaching into food chains. Fresh water is growing scarcer by the day. And the Earth's climate is warming, causing glaciers to melt, sea levels to rise, and storms to intensify. This escalating environmental crisis is a core reason for growing turbulence within world politics. But other powerful forces are also destabilizing international relations and community life.Inequality is increasing, both within and between countries. Growing numbers of people in conflict-ridden, impoverished lands are desperately trying to cross borders in search of safe, sustainable places to reside. Populists are whipping up nationalism and racism. Scientific knowledge is under attack and online trolls are proliferating. China and Russia are challenging American hegemony, authoritarianism is spreading, and democracies are struggling to cooperate. COVID-19 restrictions since 2020 and Russia's attack on Ukraine in 2022 strained the world economy of cheap labor, global supply chains, and mass tourism-and another global financial crisis could well be around the corner. Meanwhile, corporate power continues to grow, with the leading firms already far more powerful than the vast majority of states. In this context, civil society is under siege as states repress dissent and corporations appease and silence critics. Even the internet is becoming increasingly dangerous, as cybercriminals and high-tech mercenaries multiply, intelligence agencies wage disinformation wars, security forces intensify surveillance of civil society, and social media companies compete for our attention and our data.Turbulence has long been a feature of world politics. This was true during the Middle Ages. It was true as ecological imperialism and European colonialism ravaged the world after the 1500s. And it was true during World War I (1914-1918), World War II (1939-1945), and the Cold War (1947-1991. Back in 1990, it was perfectly reasonable for James Rosenau (1990) to title his ground-breaking analysis of why world politics is in constant turmoil, Turbulence in World Politics.