Scientists warn if countries do not commit to emissions reduction pledges, we could reach the 1.5 degrees Celsius warming threshold, with no turning back. While we often hear about the impact a warming planet has on the environment, climate change is a threat multiplier exacerbating other societal tensions such as migration and security. Alice Hill returns with insights on these issues and discusses how global leaders will address these problems and more at the upcoming COP26 UN climate change summit.