I blame the metric system.

This is a non-sequitur. Fill a glass with water. It never overflows... Until it does.

What type of argument is,
It was predicted, therefore it will happen.

I think that is "begging the question" but I am not sure.

Well, it depends on who is making the predictions. A born again may predict that the rapture is coming next week. I am not going to lose any sleep over that prediction.

An international group of scientists who have spent years studying the phenomenon of climate change and have run all the numbers and statistics AND all these scientists agree - that's when I become concerned. Besides global warming is already happening. The glaciers in Greenland and Antarctica are melting at an alarming pace. Desertification is destroying millions of acres of what was once good grazing or agricultural lands. These things are not predictions. You can go and see them for yourself if you are so inclined.