Not really sure what you are looking for by the title, but I would go where the money is. There are tons of energy companies (many are mandated to do environment analysis) that hire data scientist and/or analysts. One example is SUNCOR [1], but there are tons of supporting engineering firms that provide services to these types of companies too. Just google a few and then look for firms that provide services to them. If you're new to the industry, I'm guessing you are, since you're asking, then start trolling these sites and look at the job postings, these will tell you the types of skills / certifications they are looking for.