“Doesn’t emit CO2 when in operation” and “carbon neutral” are two completely different things.
If Musk produces his methane using electricity from the solar cells he sells, and this thing flies on hydrogen made by burning oil to drive a generator that uses hydrolysis to split water into hydrogen and oxygen, Musk’s rocket hopper can well be closer to carbon neutral.
Also, “environment friendly“ is yet something different. Using bare steel and reusing rockets, as Musk does, will help there, but this design also seems to be reusable.
> Also, “environment friendly“ is yet something different. Using bare steel and reusing rockets, as Musk does, will help there, but this design also seems to be reusable.
...also, burning pretty much anything at high temperatures in our atmosphere will result in interesting nitrogen compounds.
If Musk produces his methane using electricity from the solar cells he sells, and this thing flies on hydrogen made by burning oil to drive a generator that uses hydrolysis to split water into hydrogen and oxygen, Musk’s rocket hopper can well be closer to carbon neutral.
Also, “environment friendly“ is yet something different. Using bare steel and reusing rockets, as Musk does, will help there, but this design also seems to be reusable.