The degree of regulation should be proportionate to the perceived risk of the new organism, which is a function of certain characteristics of the host plant, such as weediness, toxicity, ability to outcross, etc.

FORBES: EPA Biotech Regulation Bucks The Scientific Consensus

The degree of oversight should be proportionate to the perceived risk of the genetically engineered plant, which is a function of certain characteristics of the host plant (weediness, toxicity, ability to outcross, etc.) and the introduced gene.

FORBES: Back To The Future: Let's Reverse 25 Years Of Flawed Agbiotech Regulation

Groundwater response to global changes is a complex function that depends on climate change and variability, topography, aquifer characteristics, vegetation dynamics, and human activities.

UNESCO: Climate Change Effects on Groundwater Resources: A Global Synthesis of Findings and Recommendations | United Nations Educational, Scientific and Cultural Organization