When I received recent issues of Fortune, I was quickly reminded that green is the color of spring. On March 19, in the Most Admired Companies in America issue, the magazine touted the green credentials of General Electric, Starbucks and Toyota - the top three companies - all of which are building their growth on strategies and products aimed at helping preserve the planet. On the cover of the April 2 issue, Patagonia was declared the coolest company on the planet.