Hence on an estimated ballpark - Facebook daily consumes 924,000 KiloWatt-Hours with per capita of 3.08 KWh . Annually the per capita figure would be 1124 KWh /year or equivalent to emission of 0.75 ton of green house CO2 (Carbon footprint) which is half of NY city’s carbon footprint. Sadly with Facebook adding more ‘horses’ (50K more servers) to cater to our photo addiction - this number would increase to 1 ton of CO2 .
Holy moly.