Chickens coming home to roost
Guess it's liquid bio-fuels then.
People never considered the logistics of things before trumpeting and marching.
It's use it or lose it for dynamic energy. We have centuries of snail mail to go so we should exploit dynamic over fossil energy where we can.
So what is a Letter's energy foot print be then ? Snail-Mail versus eMail ?
don't forget the land area for solar panels or bio-fuel.
Your Christmas postcard could be killing us, unless we all used it.