Listing all the available environments is as simple as:
$ conda env list
Now how does one list the currently installed kernels, without having to go to the path:
$ ls /home/{{user}}/.local/share/jupyter/kernels/
With Jupyter installed you get the list of currently installed kernels with:
$ jupyter kernelspec list
python2 /usr/local/lib/python2.7/dist-packages/ipykernel/resources
testenv /home/{{user}}/.local/share/jupyter/kernels/sparkenv