Kalevi Mursula

A baker puts a layered cake in the oven: the dough is the same, the heat is the same, but each layer bakes differently. The thin crust on top is already browning, while the middle is still underdone. Earth's climate is similar: the planet is warming, but different parts of it are warming at different rates and at different times.

The Sun breathes, and that breath has a magnetic rhythm. Every 27 days, the visible surface of the star makes a full rotation, and with it, its magnetic field, like an invisible ribbon wrapped around the star.