| The first objective of the book, stated in the first paragraph of the preface, is to help citizens become ecologically literate. |
| Plentiful and inexpensive, clay is also one of the most ecologically clean building materials available. |
| This is an ecologically minded practice for it prevents over fishing and eliminates by-catches. |
| Our existence on the planet is ecologically intimately bound to the life of trees. |
| Paints, sealants, and adhesives have stepped into the ecologically aware 21st century too. |
| Today, many of these species are ecologically extinct from their former ranges and large mammals are absent from most coastal ecosystems. |
