California is expanding its work with other countries and subnational governments on climate change, clean energy and trade issues.
The state signed a series of memorandums of understanding (MOU) on Tuesday as governor Gavin Newsom (D) attended the Cop 30 UN climate summit in Belem, Brazil.
The California Air Resources Board (CARB) signed an agreement with Nigeria to collaborate on a wide range of issues, including the reduction of greenhouse gas (GHG) emissions, low-carbon transportation, sustainable freight shipping, renewable energy development and low-carbon trade.
Newsom also signed an MOU with the Brazilian state of Para, where Belem is located, to increase collaboration on wildfire prevention and response, after which he met with Brazilian indigenous peoples minister Sonia Guajajara to discuss areas for joint cooperation on climate action, including the role of indigenous communities in California and Brazil.
Newsom also met with Thekla Walker, environment minister for the German state of Baden-Württemberg, and German state secretary Jochen Flasbarth. Walker and California natural resources secretary Wade Crowfoot signed a joint statement reaffirming their cooperation on addressing climate change, including in areas such as increasing renewable energy use and low-carbon technology. The two states first signed an MOU on climate change in 2018.
More agreements could be forthcoming at the Cop. Dutch climate envoy Jaime de Bourbon Parme on Wednesday said he spoke with Newsom yesterday about joining a Netherlands-led coalition to phase out fossil fuel subsidies and expressed hope the governor would do so. The two met to discuss progress discuss progress toward carbon neutrality and continued collaboration under an MOU they signed in 2022.
Newsom is the highest profile US official attending the Cop, with the administration of President Donald Trump deciding not to send any high-level officials. He has been using the trip to promote climate policy action by US states in the face of opposition from Trump.

