Most environmental suppliers will have these in Canada. I'm sure I could suggest some suppliers if you're comfortable telling me approximately where you're located.

Hate to break it to you, but we aren't changing time, so we will continue on daylight savings time. This means that during winter it will be dark until later in the morning... The tradeoff is that we are going to have lighter afternoons and evenings, which personally I am looking forward to, but understandable that not everyone feels this way.

The article you linked specifically discusses how the findings of the study don't translate to living organisms and that there is no evidence that levels found in food are harmful.