It is a variable holding the process id of the shell instance interpreting the command. You could say "yourself" instead.
ppue
As a player, sometimes I want to settle down with an Orc and make a bunch of Half-Orc Babies, but seeing the word "species" gives me pause. I know in real life cross-breeding different species of animals rarely goes well and the children are as a rule sterile, so can i ethically bring a baby into the world that I know is going to be sterile and is probably doing to have serious health problems?
I don't get your problem here. Either the world that has half orcs declares if they are fine, or you are free to decide for yourself. Why bother yourself with some "knowledge" about the "real world"?
You wouldn't even have to die on that hill anymore because you can buy the uncensored wolfensteins in Germany today.
Per capita isn't really important in this case. Overall output is. The planet doesn't care if it's getting less per capita from one place or another.
I don't see any value in that approach except for finger pointing and doomer posting.
Then, the other thing is that your graph is just CO2.
No, it is CO2eq.
You think this is an attack on the race-horse-girl game?