Rainmatter is an initiative founded by Zach Klein and Drew Houston to support environmental sustainability and conservation efforts. It focuses on funding projects and organizations that work towards protecting the planet, particularly in areas like climate change, biodiversity, and clean water. The initiative operates as a venture fund, investing in innovative solutions and technologies that aim to address pressing environmental challenges. By collaborating with various partners, Rainmatter seeks to create a positive impact and promote awareness about the importance of preserving natural resources for future generations.