Idk. Folks much smarter than I seem worried so maybe I should be too but it just seems like such a long shot.
What are your timelines here? "Catastrophic" is vague but I'd put the climate change meaningfully affecting the quality of life of average westerner at end of century, while AGI could be before the middle of the century.
We have surpassed the 1.5°C goal and are on track towards 3.5°C to 5°C. This accelerates the climate change timeline so that we'll see effects postulated for the end of the century in about ~20 years.