Wind and waves—an enigmatic duo that immediately conjures up days spent at the beach. Yet behind the holiday images hide the keys to our planet’s climate. CNESMAG have focused on such phenomena, emphasising the vital role that satellites play in their observation. That’s because only satellites can provide global data on land masses and oceans over very long periods of time. All of which allows us to gain an ever better understanding of wind and wave changes and of their impact on our planet’s climate.