| building site(expression, concept, environment, policy) |
| category of endangered species(expression, concept, environment, policy) |
| chemical decontamination(expression, concept, environment, policy) |
| chemical policy(expression, concept, environment, policy) |
| chimney height(expression, concept, environment, policy) |
| cleaning up(expression, concept, environment, policy) |
| climate protection(expression, concept, environment, policy) |
| coast protection(expression, concept, environment, policy) |
| coastal development(expression, concept, environment, policy) |
| coastal management(expression, concept, environment, policy) |
| coastal zone planning(expression, concept, environment, policy) |
| common agricultural policy(expression, concept, environment, policy) |
| concept of environment(expression, concept, environment, policy) |
| conservation of genetic resources(expression, concept, environment, policy) |
| conservation of monuments(expression, concept, environment, policy) |
| conservation of petroleum resources(expression, concept, environment, policy) |
| conservation of species(expression, concept, environment, policy) |
| conservation policy(expression, concept, environment, policy) |
| control measure(expression, concept, environment, policy) |
| council for environmental policy(expression, feature, environment, policy) |