Green tech

I don't dismiss Green tech.  It can be a meaningful concept if it results in lowering industrial costs or increasing the productivity of currently used resources.

That is what commerce is all about...reducing costs and increasing the productivity of existing resources.  Call it anything you want...purple tech.  Reducing energy use is always welcome for the same output, shipping electricity from the East Coast to the West Coast at peak West Coast consumption times of the day on a new grid would be great.

On the other hand anything Green that increases costs such as cap and trade, reducing CO2 to avoid eschatological global disasters makes no sense at all.  The society that puts hand cuffs on its own industrial productivity will suffer a relative loss of life, liberty and the happiness of its citizens.