Defend the Climate and Environment

Good climate policy will make life for Californians not only healthier but more affordable – and the cheaper, faster, and better technologies needed to make this future possible already exist. This is how we will build a competitive, 21st-century economy, rooted in health, security, and economic opportunity.

California is the 4th largest economy in the world, and we also lead the world in environmental protections and progressive climate policies. Our state has developed and implemented some of the most forward-looking and ambitious climate policy on the planet, while retaining an innovative and thriving economy.

For over 15 years Tom has been at the front of the climate movement as an activist, philanthropist, and business leader. In 2010, he defended California’s landmark emissions reduction legislation (Cap & Trade), working with allies across labor and environmental justice to defeat Big Oil. In 2025, he rallied the public to help secure its reauthorization, delivering over $28 billion over the last decade in funding for clean energy, clean infrastructure, and well-paying California jobs.

Tom was co-chair and chief backer of Proposition 39, contributing $29.6 million to pass the measure which raised over $1.7 billion. The policy was designed to ensure the revenue was earmarked for school energy retrofits, creating union jobs.

California is uniquely positioned to continue to lead, further cementing itself at the forefront of clean energy, innovation, climate mitigation, and adaptation. Nowhere else in the world has the technologies, talent, and resources to lead on climate like we can.