Lifeless. (Hetalia and Homestuck crossover)

Hetalia and homestuck fanfiction 
yup a cross over!
err dont kill me im not good with summaries

lately world crops have been dying the each day it either a blizzard or a full on heat wave.
The countries tempers grow short and each start blaming each other, but there is simply no technology or anything to cause this. Its to bad for it be natural. Suddenly out of the blue the two powers of the world fall sick. (Russia and america) Russia's capital Moscow and some of America's states fill in for the two boys.
only a week after the two countries fall sick they begin to get worse with each day. During a meeting an odd planet just appears into orbit. Is this odd planet to blame that has odd creatures on it and a couple of odd humans? or is it far worse than them?

(oc's: Louisiana, Texas, Minnesota, New Mexico, and wonderful Moscow.)