IPCC Scientist Admits Climate Horror Scenario Was a ‘Narrative’
Austrian economist Nebojša Nakićenović defended his RCP8.5 climate scenario despite 44 IPCC researchers calling it implausible, saying plausibility and realism are irrelevant to his work.
Nebojša Nakićenović, widely regarded as the architect of the RCP8.5 scenario first published in 2011, told German outlet Zeit that he stands by his extreme projections even after 44 prominent researchers working with the Intergovernmental Panel on Climate Change (IPCC) declared the scenario “implausible” earlier this year, according to Nius.
The RCP8.5 model has served as the foundation for thousands of climate studies and numerous German government publications, presenting a worst-case scenario that projects catastrophic warming and environmental collapse. Yet Nakićenović remains unshaken by the scientific community’s reassessment of his work.
Creator dismisses concerns over scenario’s credibility
When confronted by Zeit journalists with critics who argue that the scenario’s assumptions — including a tenfold increase in coal use and a tripling of atmospheric CO₂ levels — are unthinkable, and that even complete abandonment of climate protection measures would not produce the projected five-degree temperature rise, Nakićenović offered a revealing response.
It doesn’t matter how probable or realistic RCP8.5 is considered, the economist stated. He characterized the projections as calculations and narratives about how the future could develop in various directions, rather than firm predictions.
This acknowledgment confirms what many critics have long argued: RCP8.5 was never intended as a genuine forecast but rather an implausible extreme model that has been systematically misused by media outlets and political figures as a convenient climate catastrophe scenario.
Scientists accuse climate establishment of misleading the public
Professor Gerd Ganteför, a physicist who spent decades conducting research at the University of Konstanz, told Nius he has always considered the doomsday scenario exaggerated. Fritz Vahrenholt, another prominent critic interviewed by Nius about the climate horror scenarios, described the recent revisions by climate scientists as a “fighting retreat.”
Vahrenholt leveled harsh criticism at the climate research establishment, stating they have misled the entire world public. He justified this accusation by pointing out that the assumptions underlying the extreme scenarios have always been “freely invented.”
The controversy surrounding RCP8.5 raises fundamental questions about the integrity of climate communications and the use of implausible worst-case models to drive policy decisions affecting billions of people and trillions in economic resources. While Nakićenović insists his scenario remains valid as a theoretical exercise, its widespread adoption as a baseline prediction suggests a significant disconnect between academic modeling and public climate discourse.
With information from Nius
