Oysters aren't just good for a feed. They also give a vital boost to coastal ecosystems, which is why efforts are underway to restore Australia's once-abundant oyster reefs to their former glory.
Residents often have concerns about informal green space but some still use it. Work to enhance these areas should aim to resolve these concerns without destroying what residents do value.
In colonial times Australia's waters were teeming with mud oysters that provided food, cement, and cleaned the oceans. Now a 20-hectare man-made reef aims to restore some of their former glory.
Rehydrating the Florida Everglades is the largest ecological restoration project in the world. Ecologist Peter Frederick explains why this massive effort is worth its multi-billion-dollar cost.