Photo: Business PunditTalk about student activism: Lucy Southworth, a Stanford University doctoral student, has given $100,000 to the campaign to defeat Proposition 23, the California ballot initiative that would suspend the state’s global warming law.

If the name doesn’t ring a bill, try Googling. In Silicon Valley, Southworth is better known as the wife of Google co-founder Larry Page.

Her contribution follows the $500,000 earlier donated to the No campaign by Wendy Schmidt, wife of Google Chief Executive Eric Schmidt. (Disclosure: Wendy Schmidt serves on Grist’s board of directors.)

The No forces took in $200,580 in campaign contributions on Monday, following a $5 million haul in the previous week, according to California Secretary of State records. Applied Materials, the world’s biggest manufacturer of the machines that make computer chips, gave $25,000 on Monday; Chicago-based wind developer Invenergy donated $10,000; and William S. Fisher, San Francisco investor and an heir to the Gap clothing empire, donated $25,000, as did Sakurako D. Fisher.

All this check writing is to protect California’s climate change law, known as AB 32. The law requires the state to cut greenhouse gases to 1990 levels by 2020. Prop 23 would suspend AB 32 until the unemployment rate fell to 5.5 percent for four consecutive quarters, a rare occurrence in recent decades.

The Yes campaign, which is largely funded by two Texas oil companies, continues to lag far behind in the fundraising department of late. It logged one $5,000 contribution on Monday, from a Mississippi barge company that hauls petroleum and petrochemicals.