tell her to research the norse farms in greenland around 950 AD and the vineyards in britain during the roman rule; both make it obvious that the planet was a lot warmer than it is now
try not to punch out your computer
https://joebiden.com/wp-content/uploads/2020/08/UNITY-TASK-FORCE-RECOMMENDATIONS.pdf?fbclid=IwAR3JjIp2trw6jbqgY5fnFyaU2HmdyzHXPaUult6ZWb4L-Ffg8Vyn7k6GMJg