Earth's Wobble 'Fixes' Dinner for Marine Organisms

"The cyclic wobble of Earth on its axis controls the production of a nutrient essential to the health of the ocean, according to a new study in the journal Nature. The discovery of factors that control this nutrient, known as "fixed" nitrogen, gives researchers insight into how the ocean regulates its own life-support system, which in turn affects Earth's climate and the size of marine fisheries."