1 Subjects: “...national park...”

2 Subjects: “...National Benchmark Tests (NBT)...”

3 Subjects: “...national solid waste policy...”

4 Subjects: “...national target...”

5 Subjects: “...national legislation...”

6 Subjects: “...national power system...”

7 Subjects: “...national system of innovation...”

8 Subjects: “...national standard...”

9 Subjects: “...ozo-nation...”

10 Subjects: “...National Health Service (NHS)...”

11 Subjects: “...LAN (Law of the Nation's Waters)...”

12 Subjects: “...national and global efforts...”

13 “... the surpluses needed for national self-sufficiency and a high-value export industry. For centuries, farmers...”

14 “..., organizational, urban, regional, national, and international. Spatial patterns of scientific collaboration...”

15 “..., and sustainable development at different territorial levels, including the local, regional, national...”

16 “...Life below water is the 14th Sustainable Development Goal (SDG) envisaged by the United Nations...”

17 “... that can be implemented in national, regional or even local energy systems at different implementation...”

18 “...; National and international water policy, institutional arrangements, and water law; Water conflict...”

19 “... such stewardship to global and national policymakers and actors on a broader scale. This can be achieved...”

20 “... strategic priority at local, national, European, and global levels. This Special Issue will pay attention...”