[eyjafjallajokul]

Pretty sure they are being sarcastic and referring to wooden construction (majority of US homes).

[rapnie]

Yea, I know. Mine was just an example of 'reinventing the wooden construction'.

[exabrial]

Trees are great but require quite a bit of landmass. They're also slow :) As part of an "all of the above solution", a way to do what they do artificially would be handy