What have we done about it?
	• Increased sophistication of satellite algorithms • Addition of phytoplankton functional groups • Addition of elements • Increased realism of physical models – Spatial resolution (mesoscale eddies) – Temporal variability (El Nino; NAO; PDO) – Better physics (Gent-McWilliams; KPP) • Distinguishing regions of nitrogen, phosphorus, silicon and iron limitation