Write, blog, call--whatever. Do something. And if you're a scientist in a relevent field, do whatever you can do, or if you know someone who is a scientist in a relevent field, ask him or her to speak out, in whatever fashion, and/or contact appropriate professional organizations or affiliations.
Being neither a lawyer nor a scientist, I certainly can't contribute any expertise, but I do plan on writing Peter Mackay, minister of Foreign Affairs, Stephen Harper, prime minister, and John Baird, my local MP. Not much, but every little bit helps.
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