The program will highlight the work of Exploring Ocean Iron Solutions (ExOIS) and trace the origins of the Iron Hypothesis, first proposed by renowned oceanographer John Martin. Martin famously suggested that adding trace amounts of iron to nutrient-rich regions of the ocean could trigger blooms of phytoplankton and diatoms. These microscopic algae absorb carbon dioxide and release oxygen through photosynthesis. “Give me a half tanker of iron, and I will give you an ice age.”