Just a correction: the city name is Sao Paulo with a 'u'. It has the tilde at São but if you don't want to you can omit it. The thing is that Paolo with an 'o' isn't a Portuguese name (it's Italian). In English it's written like in Portuguese. I see it sometimes so I just got in the habit of reminding people, wasn't calling you out, just trying to prevent future mistakes like that.
Actually there are not 7 regions for Google Cloud Storage but 3: US, EU, ASIA. You can get more specfic but that's still Alpha: ASIA-EAST1, US-CENTRAL1, US-CENTRAL2, US-EAST1, US-EAST2, US-EAST3, US-WEST1.
http://gaul.org/object-store-comparison/