Sorry if this comic made you miserable. But nobody puts in global-warming trigger warnings for me, so why should I do it for anyone else? 
TEXT OF COMIC:
I had another nightmare last night.
About what?
Tornados. My nightmares are almost always natural-disaster-themed, these days.
Well, natural disasters are getting worse and worse. That’s climate change for you.
I sometimes zone out during the day, too, getting vivid images of the world ending in an explosion of floods, hurricanes, heat waves and a final all-destroying drought. Yesterday I totally forgot I was in math class and not living the apocalypse.
Even innocuous conversations about the weather can trigger waves of panic and depression for me.
Wow. You have all the symptoms of post-traumatic stress disorder, except your trauma is in the FUTURE.
Who says the P in PTSD can’t stand for “pre”?
MOUSEOVER TEXT: Yup, another tornado nightmare for me last night, too.
What sort of math was Abby doing that was indistinguishable from the apocalypse?
(Also, that line is repeated.)
oh, my gosh, thanks! Fixed. Yikes, I must’ve been really distracted when I did that strip.
I suppose math itself could make you think about the apocalypse, if it was math related to the physics of supernovas or the heat-death of the universe.
Calculus II.
After Calculus II, Calculus III is a breeze.