I am thinking to apply to Science co-op in third year. Does anyone know if I can apply to jobs all over the world or only to specific countries?

Thanks

I believe it is on a case-by-case basis. Also I think applications are at the end of your 2nd year if I'm not mistaken.

Yeah, you have to apply to co-op by sometime in February (usually) of your second year.

I think if you can secure a job abroad, they'll approve it.

You can apply wherever you want, but the co-op office must know that it's a safe country and that you have a secure living arrangement there.