Third Nature is a venture capital fund that uses an "earth systems investing" approach, targeting the interdependencies of oceans, land, atmosphere, freshwater, and the biosphere rather than focusing on isolated climate problems or "silver bullet" solutions. The firm operates as a multi-stage, venture-building platform with an integrated capital model designed to move entire systems and markets, not just fund individual startups, and concentrates its investments around seaweed- and ocean-based biomaterials and food companies.