Gore the Capitalist:

"Do you think there is something wrong with being active in business in this country?" Mr. Gore said. "I am proud of it. I am proud of it."

Other public figures, like Speaker Nancy Pelosi and Robert F. Kennedy Jr., who have vocally supported government financing of energy-saving technologies, have investments in alternative energy ventures…

As a private citizen, Mr. Gore does not have to disclose his income or assets, as he did in his years in Congress and the White House. When he left government in early 2001, he listed assets of less than $2 million, including homes in suburban Washington and in Tennessee.

Since then, his net worth has skyrocketed, helped by timely investments in Apple and Google, profits from books and his movie, and scores of speeches for which he can be paid more than $100,000, although he often speaks at no charge.

He is a founder of Generation Investment Management, based in London and run by David Blood, a former head of Goldman Sachs Asset Management (the firm was quickly dubbed Blood and Gore). Mr. Gore earns a partner’s salary at Kleiner Perkins. He has substantial personal finances invested at both firms, officials of the companies said…

Mr. Gore’s spokeswoman would not give a figure for his current net worth, but the scale of his wealth is evident in a single investment of $35 million in Capricorn Investment Group, a private equity fund started by his friend Jeffrey Skoll, the first president of eBay…

He has a stake in the world’s pre-eminent carbon credit trading market and in an array of companies in bio-fuels, sustainable fish farming, electric vehicles and solar power.

Capricorn holds a major stake in Falcon Waterfree Technologies, the world’s leading maker of waterless urinals. Generation has holdings in Ausra, a solar energy company based in California, and Camco, a British firm that develops carbon dioxide emissions reduction projects. Kleiner Perkins has a green ventures fund with nearly $1 billion invested in renewable energy and efficiency concerns.