This week's Open Mic guest is Pam Marrone, Co-founder and Executive Chair of the Invasive Species Corporation. Marrone says there are over 37,000 invasive species in the world with over 3,500 that are considered harmful. Combined, these species have cost the global economy over $1 trillion dollars. As the climate warms, Marrone says these species are migrating farther north, impacting an even larger area and bringing danger to plant and animal species as well as industries essential to rural communities. Marrone says prevention is key but greater investment in biologicals and ag research is needed to help limit the spread of these harmful pests.