Coming from an astronomy education, lol. Our very sun is so much different than it otherwise would be because of trace metal elements. Small things absolutely can have outsize consequences. But back to weather, I mean, part of this particular naivety is because we measure temp in a narrow range for daily purposes. Think instead in absolute terms: Kelvin. The change in temp is less than half a percent… or just around, off the dome and converting I am talking roughly… but the warming effects are still undeniable. Ecosystems are fragile. Our scales are attuned to that, not the absolutes. So when you consider small CO2 changes in the absolute and ALSO the temperature changes in the absolute, misinformation about scale is plainly exposed.