Some Pro/Con comments:
Green Business Management is definitely a new concept and you will have less competition to find a job from government or private. However, the green standard is not set and business model is not mature, there is a long way to develop yourself and high uncertainty of how it evolves. BTW, one of the professors of Algonquin is the riding of Green Party.
E-Publishing is also new concept but there are a few off the shelf software. It is certain government need people with these skills too. If you learn this course as a concept, I guess it is not very specific but if you want to learn skills, if depends on whether what you learn is marketable.