How can the desert be essential for the ocean? 🏝️ In this week’s Earth from Space, we see a satellite image of a big sandstorm over Cabo Verde. The sand comes mainly from the Sahara and Sahel region. Owing to Cabo Verde’s position and the trade winds, these storms are not uncommon. To us, this is an inconvenience as it can disrupt air traffic but for life in the deep ocean is essential. For example, the iron in the dust is particularly important. Without iron mammals cannot make haemoglobin to