sorrros, thanks for clearing, all our calculations as on reddit came to the same result, 1.6 Terrawatthours per year. >1 J per GH/s may more reality, think on old mining hardware, mining bots, badly configured software, free/cheap energy some use on their workplaces, etc. Other carbon wasting systems like cars can be fixed, mining is competitive by design, sorry BTC and many alts, your energy consumption looks broken.
Just for understanding, Antminers data on power consumption should be 590 Ws, not Watt as they wrote?
Welcome therealbigcoin

PHS runs near 2 years, history thread:
https://bitcointalk.org/index.php?topic=263744.0Yep, I know there is still bitcoin mining zombie bots using CPU still to this day, even find one on occasion in the wild.
Well lets do PHS in comparison.

PHS averages about 50-100 nodes.
I guesstimated 10% of these nodes are run 100% of the time only for PHS OR have greater than 800 dust (stakes) which eats up 100% of 1 PC core. So I used 100 w/hr for them.
For every other node, which I guess just runs PHS in addition to a typical work day or on a computer running anyway, about 1 watt/hr. Might actually be less or more.
so 50 nodes:
5*100 = 500 w/hr
45*1 = 45 w/hr
.545 kWh/hr with 50 nodes
100 nodes
10x100 = 1 kWh/h
90*1 = 90 w/hr
1.09 kWh/hr with 100 nodes
Just some rough numbers here, might have mistakes, whats our yearly look like? And how many trees are we going to plant

Also I know bitcoin looks bad on paper, but when you compare it to physical currency creation, shipping, etc it's actually very green, just not as much as PoS.