Carl Hall is the co-founder of Alder, the largest environmental technology investment fund in the Nordic region. For several years he had been a serial entrepreneur, starting businesses in primarily IT and internet services. In 2006 he began working as a venture capital investor. Right around this time climate change was becoming a huge issue for humanity. Carl decided to start an environmental investment fund to help the environment, make money and build great companies. Having met more than 300 environmental entrepreneurs he now shares their secrets on making money by saving the planet.