29 A conversation with Co-pilot - Ice ages and greening the planet
Me - The climate is changing because ; Fluctuations in temperature/sea-level/co2 and o2 percentages have always occurred due to recuring celestial orientation (ice age after ice age) OR humans have altered the climate by burning fossil fuels? Short answer: Earth’s climate has always cycled through ice ages and warm periods due to slow, predictable celestial mechanics — but the rapid warming happening now is overwhelmingly caused by humans burning fossil fuels , not natural cycles. Natural fluctuations operate over tens of thousands of years; the modern spike has happened in under 200. What natural cycles do Natural climate shifts come from: Milankovitch cycles — changes in Earth’s orbit, tilt, and wobble over 23,000–100,000 years. These drive ice ages and interglacials. Solar variability — small 11‑year fluctuations in solar output. Crucially, solar output has shown no net increase since 1880 , even as temperatures soared. Volcanic activity ...