While humans have been using geothermal heating and cooling since the Paleolithic era, it has only recently gained popularity and acceptance as a cleaner energy source that can reduce traditional costs by 20% or more. Over the next 30 minutes, you will hear Jimmy Leask, Director of Marketing & Business Development at British Columbia-based Geotility, a 50-year-old business that has become a geothermal leader, developing and delivering comprehensive sustainable energy systems.