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@@ -4430,6 +4430,26 @@ <h5>Examples</h5>
       </section>
     </section> <!-- privacy -->
 
+    <section>
+      <h3>Environmental</h3>
+      <p>
+        Addresses the ability of authors or users of a DID method to evaluate 
+        possible environmental impacts of a specific DID method.   
+      </p>
+
+      <p>
+        As with all criteria explored in this Rubric, comparative evaluation
+        of environmental concerns may surface some interesting tradeoffs.
+        For example, DID methods that score very high or very low (where
+        low is desirable, and high is not) in environmental impact may have
+        oppositely desirable scores in some other category. That is, when
+        environmental impact is lowered, the other category rises, and when
+        environmental impact is raised, the other category sinks. Only you
+        can determine the appropriate balance of these tradeoffs for your
+        deployment or development.
+      </p>
+    </section> <!-- environmental -->
+
     <section>
       <h3>Other criteria</h3>
       <p>
@@ -4851,4 +4871,4 @@ <h2>Acknowledgements</h2>
   </section> <!-- appendix acknowledgements -->
 </body>
 
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