He is wondering about a possible global cooling. Whether it is happening or not is not the important part. It has happened and can happen again, just look at the Little Ice Age.
For some parts of the country this is a really bad winter. What happens if spring is a little late and we have another July 4th snow storm?
What about your heating bills?
What about the farmers how are they going to grow food if it is still snowing?
What would happen to food prices?
How would life in your city change?
What do you think the government would do?
What would you do?