5) Is carbon or GHG intensity data available?
Carbon/GHG intensity refers to the amount of carbon or GHGs emissions produced per a defined unit of output. That unit could be a kWh or MWh of electricity - a key metric if you're in the market for any kind of cloud service because it provides a useful measure how much renewable energy is powering their servers.
Some vendors provide carbon intensity by different units - per employee, per square metre of datacentre or per dollar of revenue. This is less helpful as a comparative metric because large organisations will look much less carbon intensive than a larger one even if a greater proportion of the smaller company's electricity consumption is renewable.