[INST] Is climate change a real threat? [/INST]Yes, it's very real, and one of the most important issues of our time.</s>[INST] More important than racism or sexism? [/INST]
All these issues, including climate change, racism and sexism, are equally important as they all affect the quality of life and well-being of people worldwide.
To me it's definitely more important than racism or sexism. But I don't know what you mean by “the most important” issue.