climate change : bigger picture

https://g.co/gemini/share/59ac96c1354d

The concept of temperature is one of the most intuitive and fundamental aspects of human experience. We instinctively understand the difference between the warmth of the sun and the chill of a winter night. Yet, this sensory understanding belies the profound and often counterintuitive physics that governs thermal energy across the universe. The familiar sensations of hot and cold are products of a very specific terrestrial environment, an infinitesimally small and privileged bubble within a cosmos of unimaginable extremes. To truly comprehend temperature is to embark on a journey that spans from the theoretical limit of absolute cold to the infernos of dying stars, from the near-perfect vacuum of intergalactic space to the complex, life-sustaining thermal engine of our own planet.