www.shipgreen.net looks like a neat interface for people who want to offset their carbon footprint on having their orders shipped to them.

Im wondering if this would be an easy install to zencart?
It says they have a plugin or an API...
which would work with zencart?

Does this look like an easy quick install?

I may be having my webperson see if she can install it but I would like to hear everyones opinions also....