It makes sense to instigate oyster restoration projects, not just to provide food, but also to reverse the degradation of the ecosystem.  Unfortunately it is not always that simple.

Marine protected areas are on the rise, but that doesn't necessarily mean more of the ocean is actually being protected.

The US Magnuson-Stevens Fishery Conservation and Management Act has prompted rebuilding of a number of fish stocks.

The problem is that cheap oil is running out. Here enters the concept of 'peak oil'. This doesn't mean that oil itself has run out (though oil being a finite resource it will eventually run out if we continue to deplete it indefinitely). It means that we have depleted over half of all the oil in the world.

Broadly speaking, the environmental impacts of organically farmed meat and produce are lower than industrialised farming. 

The gift economy isn’t about giving goods or services in order to get something back. It's more a pay-it-forward notion that by contributing to your community relationships are strengthened, connections are made, and all members of the community benefit.