So many people ask me for help in finding green work (both lawyers and nonlawyers) that here is a summary of places to start doing your research:
Watch for government openings (federal, provincial, and municipal); they are the very best place to learn. Toronto has many excellent nongovernmental organizations devoted to environmental issues; check out the members of the Toronto Environmental Alliance. I also encourage you to join the various green networks in and around Toronto, such as Green Enterprise Toronto; Green Drinks; and I know Toronto Greenhouse. There are also many excellent organizations involved in Greening Greater Toronto, and those nominated for the Green Toronto awards. Any of these might offer an opportunity that is suitable for you. If you cannot find paid work, look for opportunities to volunteer while you build some expertise and contacts.
Best wishes to everyone who wants to help save the planet. There certainly is enough work to do.