In 2021, Berkeley committed to the C40 Race to Zero campaign to reach net-zero emissions by 2045. Its Climate Action Plan emphasizes wind and solar energy, zero waste, local food consumption.
San Diego combats drought with the Claude "Bud" Lewis Carlsbad Desalination Plant, transforming seawater into drinkable water.
Portland, known for its eco-friendly initiatives, is in the top 2% for renewable energy. Replacing 45,000 streetlights with LEDs cut energy use by 50% and saved $1.5 million annually.
Washington D.C. reduces urban heat by planting trees and managing stormwater runoff. It ranks in the top 2% for LEED-certified buildings, with energy-efficient public schools aiming for net-zero energy.
Denver earned LEED for Cities Platinum Certification in 2019 for sustainability in urban planning. By 2023, it aimed for 100% renewable energy by 2030, with solar gardens above parking lots.
San Jose's 2018 Climate Smart plan aligns with the Paris Agreement targets. The city aims to be the EV capital of the world, with 60% electric passenger vehicles by 2030.
Boston, the 3rd most walkable U.S. city, ranks in the top 5% for energy-efficient commuting. Named "Solar City of America" in 2007, it met its 2020 carbon reduction goal early.