How do I prevent calendar from sending email notifications for calendar events?

Right now I have my google calendar synced with iCloud. This is great for me to add things either on my Mac, through the web on iCloud or Google Calendar, or my iphone. The problem is that I am getting notifications through email that I do not want. These are not google notifcations but those sent out through my MacBook Pro calendar/mail applications. How can I stop this from happening? I want to keep the phone notifications because that's what I need. The emails just take more of my time up since I need to delete them.