A Silicon Valley lawmaker is gaining momentum with a bill that would require "climate change" to be among the science topics that all California public school students are taught.

The measure, by state Sen. Joe Simitian, D-Palo Alto, also would mandate that future science textbooks approved for California public schools include climate change.

"You can't have a science curriculum that is relevant and current if it doesn't deal with the science behind climate change," Simitian said. "This is a phenomenon of global importance and our kids ought to understand the science behind that phenomenon."