I do believe you will be required to get your control number from your broker and I also believe they will send it and the circular out to you but that would be to late if you wish to vote green. Call them up. It was easy.
Of serious note to me was Sculpins comment here. (Also, you may wish a copy for future records. There is a box that you can have confirmation of your voting sent to your email if you desire.
Just fill in your email in the appropriate box.)
I find this to be of most importance for the future. Just fill in your E address.