Minnesota Governor Tim Walz has been selected as Vice President Kamala Harris’s running mate, a choice that has sparked enthusiasm among climate activists due to his aggressive climate policies. Walz has implemented ambitious initiatives, including a law mandating Minnesota to achieve 100% carbon-free electricity by 2040, making it one of the most progressive climate action plans in the nation. While environmental groups praise his record, critics argue that his policies are reminiscent of California's model, which they claim has contributed to economic struggles. Walz's political career includes support for cap-and-trade and clean energy mandates, drawing both support from green advocates and skepticism from oil interests. His selection comes as Harris prepares to face off against the Republican ticket at the Democratic National Convention, marking a pivotal moment for the party's climate agenda. Overall, Walz's history as a climate champion contrasts with concerns from opponents who view his policies as economically detrimental.