--- title: "Meaning & Key Takeaway of: We have no idea what's natural and what's…" description: "\"We have no idea what's natural and what's man made. [...] There is no fingerprint of human-caused warming.\" — Roy Spencer" image: "https://sms4smile.com/quotes/i/d3f/roy-spencer-30236_climate_we-have-no-idea-what-s-natural-and-what_1743733.png" --- # We have no idea what's natural and what's man made. \[...\]… ![“We have no idea what's natural and what's man made. [...] There is no fingerprint of human-caused warming.” quote by Roy Spencer](https://sms4smile.com/quotes/i/d3f/roy-spencer-30236_climate_we-have-no-idea-what-s-natural-and-what_1743733.png) [Download](https://sms4smile.com/quotes/i/d3f/roy-spencer-30236_climate_we-have-no-idea-what-s-natural-and-what_1743733.png) [Open image](https://sms4smile.com/quotes/i/d3f/roy-spencer-30236_climate_we-have-no-idea-what-s-natural-and-what_1743733.png) > “We have no idea what's natural and what's man made. \[...\] There is no fingerprint of human-caused warming.” [Roy Spencer](https://sms4smile.com/quotes/author/roy-spencer/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. We cannot clearly distinguish natural climate variations from human‑induced changes, and evidence for a distinct human fingerprint is lacking. **In simple terms:** Hard to tell natural vs man‑made climate change. Key Takeaway Question assumptions about climate attribution. Themes climate science uncertainty human impact Mood skeptical analytical Type scientific critical When to use this quote - policy debates - environmental research - public communication Key Concepts anthropogenic warming natural variability Questions to Reflect On - How reliable are current climate models? - What evidence would convincingly show human influence? A Different Perspective Attribution studies show mixed signals and methodological limits. ★ ★ ★ ★ ★ No ratings yet [Climate](https://sms4smile.com/quotes/about/climate/) [Fingerprints](https://sms4smile.com/quotes/about/fingerprints/) [Humans](https://sms4smile.com/quotes/about/humans/) [Ideas](https://sms4smile.com/quotes/about/ideas/) [Men](https://sms4smile.com/quotes/about/men/) [Nature](https://sms4smile.com/quotes/about/nature/) [Nature of man](https://sms4smile.com/quotes/about/nature-of-man/) [Warming](https://sms4smile.com/quotes/about/warming/) ## Related quotes > [There is a point of no return after which warming becomes unstoppable - and we are probably going to sail right through it. 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This is in contrast to men whom Nietzsche describes…](https://sms4smile.com/quotes/vd/healthy-men-do-house-and-yard-work-in-order-to-connect-with-their/) VD > [“The law of God is not easy for natural man. Its standard is high and cannot be achieved apart from God's supernatural grace. God's…](https://sms4smile.com/quotes/tedd-tripp/the-law-of-god-is-not-easy-for-natural-man-its-standard-is-high-and/) [Tedd Tripp](https://sms4smile.com/quotes/author/tedd-tripp/) ## More by Roy Spencer > [Nature is not static, but causes its own, internally-generated changes - both in climate and in biological systems.](https://sms4smile.com/quotes/roy-spencer/nature-is-not-static-but-causes-its-own-internally-generated-changes/) [Roy Spencer](https://sms4smile.com/quotes/author/roy-spencer/) > [Politicians and some of the scientists like to say that there's a consensus now on global warming or the science has been settled, but…](https://sms4smile.com/quotes/roy-spencer/politicians-and-some-of-the-scientists-like-to-say-that-there-s-a/) [Roy Spencer](https://sms4smile.com/quotes/author/roy-spencer/) > [Contrary to popular accounts, very few scientists in the world - possibly none - have a sufficiently thorough, 'big picture' understanding of the climate…](https://sms4smile.com/quotes/roy-spencer/contrary-to-popular-accounts-very-few-scientists-in-the-world/) [Roy Spencer](https://sms4smile.com/quotes/author/roy-spencer/) > [It is well known that strong to violent tornado activity in the US has decreased markedly since statistics began in the 1950s, which has…](https://sms4smile.com/quotes/roy-spencer/it-is-well-known-that-strong-to-violent-tornado-activity-in-the-us/) [Roy Spencer](https://sms4smile.com/quotes/author/roy-spencer/) > [“One of the large uncertainties about climate change is the extent to which it changes naturally. 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