Why do all models have limitations

 Most models can't incorporate all the details of complex natural phenomena. Since models have to be simple enough that you can use them to make predictions, they often leave out some of the details.

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

yes it is weird but true