I was walking in Pt. Reyes on a strikingly hot day, the sun intense and shade scarce, and everyone was talking about it, hands shielding their eyes or fanning their faces. This part of the world is on tidal waters. There tends to be evening fog and all-day breezes, salty and cool. But not lately. The heatwave gripping the world was edging its way into this coastal pastoral, too.