If you do not want the root environment with Python 2.7 showing up as kernels in notebooks as shown below:
Please remove the ipykernel and r-irkernel packages from the root environment:
sudo su - aen_admin or wakari
#make sure that ryiu run the below from the root environment
conda remove ipykernel
conda remove r-irkernel
Users will not see the root environment anymore in their notebooks:
Please see the below article if you do not want the users to use Python2.7 which comes with the default environment: