Throughout Vice President Kamala Harris' career, climate action has been a consistent theme. During her tenure as California's attorney general, Harris took legal action against major oil companies such as BP and ConocoPhillips. She also conducted investigations into Exxon Mobil for its involvement in spreading misinformation about climate change. As a senator, Harris played a key role in sponsoring the Green New Deal resolution. Most recently, as vice president, Harris cast the tie-breaking vote to pass the Democrats' significant climate bill.
Biden's first national climate adviser, Gina McCarthy, expressed confidence in Harris's commitment to environmental issues, stating that she will advocate for all Americans to have access to clean air, clean water, and a healthy environment. Contrasting Harris's stance on climate, advocates highlight the stark differences between her and former President Donald Trump, who has been known for his anti-environmental policies and support for the fossil fuel industry.