Martin Foster
Climate change explained from the physics up, in plain language, with no science background assumed. Ten chapters build a working model of the climate system so you can follow the subject with confidence. Each chapter rests on the one before it, starting with sunlight arriving at the top of the atmosphere and closing with the technology and policy choices that decide how much warming we get. Every technical idea grows out of ordinary experience and gets explained in words before any numbers appear. The ten chapters cover: - Weather versus climate, and the mathematical reason no forecast reaches three weeks out - How the greenhouse effect works at the level of individual molecules, along with albedo, Earth’s energy budget, and the feedback loops that amplify or dampen change - Hadley cells, jet streams, ocean gyres, El Nino, and Atlantic overturning circulation - The carbon cycle, methane and nitrous oxide, atmospheric lifetimes, land and ocean sinks, and the chemistry behind acidifying seas - Ice cores, tree rings, corals, and lake sediments, and what they reveal about Milankovitch cycles, volcanic cooling, Snowball Earth, and the PETM - Human drivers across power, transport, farming, cement and steel, plus the industrial aerosols that hide part of the warming - Observed shifts in ocean heat content, sea level, sea ice, permafrost, and fire weather, and what those changes mean for wildlife, food, water, and health - Earth system models, attribution studies, climate sensitivity, the SSP pathways, and tipping points past which some changes cannot be reversed - Wind, solar, nuclear, storage, hard to abate sectors, carbon removal, sea walls, carbon pricing, and the Paris Agreement Written for the curious general reader. That might be a student getting the fundamentals straight, a parent fielding questions at the dinner table, a voter weighing climate against everything else on the ballot, or anyone who has nodded along in conversations while quietly wishing they understood the subject better. No prior coursework required, and no math beyond arithmetic. Each chapter closes with a discussion question, and sample answers at the back let you check your thinking against a worked response. A historical timeline tracks the field from the first laboratory work on heat trapping gases in the 1800s through recent international agreements. A glossary defines the terms in everyday words, and a list of sources and further reading points toward deeper study. With a background in the subject, headlines about record temperatures, melting ice sheets, or a new emissions target stop being noise. Parts per million, radiative forcing, and carbon sink become familiar rather than foggy. You get one connected picture, honest about what is settled beyond serious doubt and plain about what remains uncertain.
