Documenting the Climate Crisis: Ellen Prager’s ‘Dangerous Earth’ In Dangerous Earth, marine scientist Ellen Prager explores the science of investigating volcanoes, earthquakes, tsunamis, hurricanes, landslides, rip currents, and-maybe the most perilous hazard of all-climate change. Each chapter considers a specific hazard, begins with a game-changing historical event, and highlights what remains unknown about these dynamic phenomena. Along the way, we hear from scientists trying to read Earth’s warning signs, pass its messages along to the rest of us, and prevent catastrophic loss.