The goal was to show that this could be done in a sustainable way while also minimizing the impact on the local ecology.

Green plants and fresh water and a balanced local ecology don't do them any good.

The majority of water treatment systems change the local ecology.

A visitor center, with exhibits on local ecology and history, opened in 1997.

Since 1960, this usually has meant studying war in relation to local ecology'(1984: 23).

In some cases, introduction is reported to have had a negative impact on the local ecology.

Human cultural changes and their effects on local ecologies have been assessed using this technique.

This in turn may have profound effects on the local ecology.

This annual program adapts California's third grade science standards to the local ecology.

His focus is on education, medical support, local ecology, sustainability, and empowering others.