The video discusses a study modeling climate change impacts up to 2500, predicting severe consequences if greenhouse gas emissions are not reduced. It forecasts drastic changes in regions like the Amazon, American Midwest, and Indian subcontinent, leading to uninhabitable conditions and shifts in agriculture towards the poles.

What is the overall message of the study regarding the future habitability of Earth?

What measures would humans need to take in the Indian subcontinent to cope with climate change?