diff --git a/README.md b/README.md
index d5c9730..4f7c63f 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
 # CO2EmissionPractice
  This repo is to practice using GitHub with a CO2 emission data file
+Here is Tanya's comment about CO2.