300 word answer

Write a 300 word minimum answer to the questions below. 

Must be plagiarism free

Please use the reference below along with one other scholarly reference: 

Tietenberg, Tom, and Lynne Lewis.  Environmental Economics: the Essentials, Chpt 4, Taylor & Francis Group, 2019.

In Chapter 4, Tietenberg & Lewis outline various ways in which economists can put a value on the environment.  What concept do economists use to measure value?  Do you think its right to put a value on nature?  Is there a downside to not putting a value on the environment?