Celebrity-watching: A-listers in Hollywood, music and politics gather in SF for Climate Summit

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It's a good week for celebrity-watching in San Francisco.

Thousands of business leaders, mayors, governors and activists from around the world are gathering in San Francisco this week for the Global Climate Action Summit, and some of the speakers are big names in Hollywood, music and politics.

Actor Harrison Ford of "Star Wars" fame is the vice-chair of Conservation International and will be speaking Thursday in a session titled "Thriving Plant: A New Hope for the Next Generation."

Another Hollywood A-lister, Alec Baldwin, will be taping an episode of his podcast, "Here's the Thing," on how climate change is impacting forests and food supply.

Singer-songwriter Dave Matthews will be joining famed primatologist and UN Messenger of Peace Jane Goodall to talk about the importance of forests.

And former Vice President Al Gore, among the most outspoken advocates for the world's climate, will be leading a session. On Friday, he's talking about the "importance of renewed ambition."

The summit runs Sept. 12-15. Participants are expected to introduce new ideas to address climate change and pledge trillions of dollars for spending on cleaner energy.

More stories on the Global Climate Action Summit:

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