Atmospheric modellers have dominated the climate debate for too long. It is time to ask well-informed geologists about Earth’s ever-changing climate history which is written indelibly in the rocks. Instead of wasting billions on bigger computers for yet more atmospheric models, let’s do some factual research on volcanoes beneath the oceans. Then ask some astro-physicists about the possible influence of solar cycles, sunspots, cosmic rays, cloud formation, earth magnetism, rogue asteroids and movements of the solar system through the galaxy.