As our planet warms, species are migrating to new regions where they can cause damage to the local ecology. How we respond to the arrival of these non-native species may shape our future ecology, with implications for food supplies and human health. In this episode, Paul meets Dr Tanja Straka who has been studying differences in how people react to these new arrivals and revealed some intriguing biases with implications for our future. He also goes "balsam bashing" with local volunteers who a...