How do you get meters squared per second squared

Meter per second squared is the unit of acceleration. It's the SI base unit of the length, the time, and the meter. You can write in a lot of different ways. M/S ^2 or M S^-2.
I hope this answers your question...?

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.