EDF delivers bold game-changing climate solutions to build a vital Earth, for everyone. Envisioning a vital earth for everyone. Delivering bold, game-changing climate solutions. Environmental Defense Fund's mission is to build a vital Earth. For everyone. By leveraging our deep expertise in science and economics, EDF delivers bold, game-changing solutions to address the biggest challenge of our time — climate change. We work to stabilize the climate, strengthen the ability of people and nature to thrive and support people's health. Working in more than 30 countries, we focus on the areas where we can make the biggest impact. From slashing pollution from transportation around the world, to slowing the warming we're experiencing now by cutting methane pollution, to bolstering nature's own capacity to stabilize the climate.