Ernst builds a surveillance suit to measure his own carbon footprint.
The vest doesn't reduce emissions—it just makes them visible, legible, convertible into data, and this is the film's actual horror, buried beneath its surface reading as suicide narrative.
Schrader shows us a man who has internalized the accountant's logic so completely that moral action becomes indistinguishable from bookkeeping. In the scene where Ernst explains the suit to Michael—he's not planning to offset anything or change anything, but rather planning to document his own carbon debt until it becomes unbearable, until the number itself kills him.
The suit is simultaneously a confessional and a death counter. What the film doesn't interrogate is why this seemed like the only available response to climate catastrophe: by 2018, the entire conversation had already shifted from "stop emitting" to "measure and monetize." Ernst is just taking the logic corporate sustainability departments practice every day to its honest conclusion.
The real tragedy isn't that he chooses self-immolation, but that both he and the film treat carbon accounting as a technology that might save us—when it can't, and Ernst's vest performs exactly the same function as a Tesla owner's carbon offset subscription, converting guilt into data and making inaction feel like accounting.
Find your last corporate sustainability report or net-zero pledge statement and count how many claims depend entirely on carbon offset mathematics rather than actual emissions reduction—then notice which numbers are audited and which are promised.
Seek out Jonathan Safran Foer's 2019 'We Are the Weather' alongside the film's release window—it documents the exact moment mainstream climate writing shifted from 'stop doing this' to 'measure what you're doing,' which is precisely what Ernst's suit embodies.