Dearest Niece and Nephew, I am writing to you from my research station here in Antarctica. Things seem very out of whack! It's supposed to be winter here, but the temperatures seem abnormally warm. I was wondering if you could possibly check in on my apartment to see if my cat Tornado might have flipped the switch to turn on the heater on my Climate Change Tracker 3.0. It wouldn't be the first time! The sooner you can correct this mistake, the better! Of course, I can't quite remember the code to turn off the machine, but I know I left some notes on my desk to always help jog my memory. Hopefully, you will be able to decipher the notes and help us all out. Best Wishes, Uncle Cli Matt Chang