Environmental technology promises attractive long-term investment returns while doing something positive on a global scale.

Eisner's resignation as CEO is the right move for shareowners.

We believe he should resign from the board as well. It is not clear to us how a two-year lame duck CEO will benefit shareowners, and his continued presence on the board would prevent the company from the clean break that is needed to restore investor confidence.

He was the strongest advocate for change on the NYSE board, ... he probably sets the right example.