It includes testing a theoretical model through the use of formal science or solving a practical problem through the use of natural science.
Similar results emerged in the fifth study, carried out entirely with natural science students at graduate and undergraduate levels.
Natural science, we're told, is supposed to be empirical and not beg big metaphysical questions.
This is a really tough question as there are so many dimensions to the climate problem -- natural science, social science, policy etc.
It focuses not just on geography, archaeology and natural science, but also promotes environmental and historical conservation.