The two sides also agreed to immediately create a task force comprising top officials including China's director general of the Department of Climate Change and California's head of the state Environmental Protection Agency.
"That's the significance of this memorandum of understanding. It involves agencies of state government, agencies of the People's Republic of China ... the University of California, businesses, research scientists in both the public and private sector. This is a very important opportunity," Brown said.
Brown and NDRC Vice Chairman Xie Zhenhua said the idea is to help each side share in ways to tighten industrial performance standards to control methane, carbon and other greenhouse gas emissions. The two governments would also exchange experts and organize workshops.
"California is being a very good role model and taking a leading role (for climate change regulation) in the U.S.," Xie said through an interpreter.
Xie added that, in China, climate change has become more of a priority as people have realized that it is taking a severe economic and human toll.
Experts on U.S. and Chinese environmental law and climate policy said the agreement is promising at a time when international climate negotiations have stalled in recent years.
"NDRC is the most powerful Chinese agency when it comes to Chinese development and energy projects," said Robert Percival, director of the environmental law program at University of Maryland's Francis King Carey School of Law.
"The pattern that is emerging is that as consensus becomes virtually impossible in global climate negotiations, the U.S. and China are realizing that they can make huge progress simply by working bilaterally."
Some environmental groups also applauded the agreement as progress on climate change.
"This is a remarkable outcome, one that has lessons for China as it tries to limit the emissions of its growing economy, and for California, which can learn from China's innovative policies to support electric vehicles," said Diane Regas of the Environmental Defense Fund.
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Follow Jason Dearen at http://www.twitter.com/JHDearen .
- AP