What is a drought, really? In pplpod Episode 5313, we go far beyond the idea that drought is simply “a long time without rain” and unpack the hidden system failures that make drought one of the most dangerous forces on Earth. This episode explores how drought moves through four escalating stages, from missing rainfall to drained rivers and aquifers, from stressed crops and collapsing ecosystems to full-blown economic and humanitarian crisis.

Along the way, we break down the science behind atmospheric evaporative demand, why hotter air acts like a vacuum that steals moisture from soil and plants, and how climate systems like El Niño and La Niña intensify drought conditions around the world. The conversation also examines the human role in making drought worse through deforestation, overfarming, irrigation mismanagement, and  ...