1 Subjects: “...global horizontal irradiance...”

2 Subjects: “...global scale...”

3 Subjects: “...global non-radial directional distance function model (GNDDF)...”

4 Subjects: “...global warming...”

5 Subjects: “...global positioning system (GPS)...”

6 “... market trends, globalization, the constant pressure to reduce production costs, and technical...”

7 “... include global energy consumption and dependence on fossil fuels, which are addressed in global energy...”

8 “...Implementing sustainable development is central to achieving global reductions in greenhouse gas...”

9 “...Population growth and climate change are leading to global water scarcity. Water shortages are thus...”

10 “... to its importance in global systems. While forest recreation focuses on forests as the main destination...”

11 “... sustainability challenges in the global dairy sector....”

12 “... of the planet's surface attributed to human activities, is now at the forefront of global politics...”

13 “... has developed rapidly in the last few decades. Both regional and global LSP products have been...”

14 “... crops, but only 15-20 species play a relevant role for the worldly global economy. Nowadays, to meet...”

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