Index: environment.yml
===================================================================
diff -u -r4efdb8f25961705cc9879ef0806fedc7dcef743c -rc2c95605ac68be56768c7fbed328ba3d3521f650
--- environment.yml	(.../environment.yml)	(revision 4efdb8f25961705cc9879ef0806fedc7dcef743c)
+++ environment.yml	(.../environment.yml)	(revision c2c95605ac68be56768c7fbed328ba3d3521f650)
@@ -20,6 +20,7 @@
   - python-dateutil>=2.7
   - sphinx
   - sphinx_rtd_theme
+  - matplotlib
   - pip:
     - bmi-python
     - wflow