# @PeterDClack: X profile (context) Related: [[Topics/Climate Change Science and Policy Debate/Climate Change Science and Policy Debate|Climate Change Science and Policy Debate (topic)]] · [[Users/@PeterDClack/Chronological List|Chronological List]] · [[Users/@PeterDClack/Topical List|Topical List]] · [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on the Implausible 5.5C Scenario (2026-10-23)\|Seed post analysis (Oct 23, 2026)]] > This is a **context profile**, built from one seed post and the 102 most recent timeline items. It is not an archive collection. ## Identity - **Display name:** Peter Clack ⚠️ (as shown on posts and in press; the profile card was not re-read) · **Handle:** [@PeterDClack](https://x.com/PeterDClack) · **User ID:** 1793048733942235136 - **Bio (verbatim):** "Peter. I've tried to understand these processes in the past, but you have put it in a way I can actually understand, thank you." This is a fan's reply used as his bio. - **Joined:** May 21, 2024 · **Verified:** blue check (paid) - **Real-world identity (high confidence):** Peter Clack, an Australian journalist and author living in the Bega Valley / Black Range area of south-coast NSW. - **Journalism.** City and police reporter for *The Canberra Times*, about 1990–2003. La Nación describes him as an award-winning journalist who spent 13 years there, mostly on courts and security. - **Education and fellowship.** BA in Professional Writing, University of Canberra (1980) ⚠️ (via LinkedIn). Churchill Fellow 1995 ([Churchill Trust](https://www.churchilltrust.com.au/fellow/peter-clack-act-1995/)). - **Books.** *Bloodstains on the Cocaine Trail* and *Firestorm: Trial by Fire*, about the 2003 Canberra bushfires (Austin Macauley, 2023) ([publisher page](https://www.austinmacauley.com/author/peter-clack-1c6)). La Nación dates the fire book to "end of 2019", which looks like an error ⚠️. - **Business.** Runs Clack Media, a PR and writing firm ⚠️ (via LinkedIn). Contributor page at [Region Media](https://region.com.au/author/peterclack/). - **Matching.** This account is the one press coverage names: La Nación embeds a @PeterDClack post from Jan 26, 2025, and says the account opened "el año pasado" (last year), i.e. 2024, which matches the May 2024 join date. - **Expertise relevant to climate:** none formal. He is a journalist and writer, not a climate scientist, geologist or energy engineer. His posts cite real papers (Judd 2024, Shakun 2012, Parrenin 2013, Zhu 2016) but often draw conclusions those papers reject. ## Third-party assessments - **ISD / Climate Action Against Disinformation, *Deny, Deceive, Delay Vol. 2* (Jan 2023)** ([PDF](https://www.isdglobal.org/wp-content/uploads/2023/01/Deny-Deceive-Delay-Vol.-2.pdf)). The report names "Australian Peter Clack (82.4k followers)" as a "notable amplifier" of science-denial claims. Verbatim excerpts: - "Australian commentator Peter Clack combines 'traditional' (i.e. science-focussed) climate denial with anti-elite conspiracies, referring to climate change as a hoax in most of his posts." - "Clack frequently refers to plots by 'Marxists' in the United Nations." - The report also says he "promotes 'alternative' and debunked petitions questioning the scientific consensus". This refers to the ~40k-signature petition (the Oregon Petition ⚠️, inferred). That report predates the May 2024 join date, so he had an **earlier X account with ~82K followers**. Its handle and fate are unknown ⚠️. - **La Nación, Jan 27, 2025 (Matías Avramow)** ([link](https://www.lanacion.com.ar/sociedad/crece-la-polemica-el-periodista-que-retuiteo-milei-para-negar-el-cambio-climatico-ya-estaba-en-la-nid27012025/)). - Argentina's president Javier Milei reposted a Clack post on Jan 26, 2025, adding "CAMBIO CLIMÁTICO Otra mentira que se cae…" ("CLIMATE CHANGE: Another lie collapses…"). - The article calls Clack "un periodista australiano que niega el cambio climático" ("an Australian journalist who denies climate change"). - Experts' critique: - Climatologist Leandro Díaz (CIMA/CONICET) called the attached graph, US maximum temperatures for one week in July, "cherry picking". - Carolina Vera, former IPCC WG1 vice-chair, criticised it too. - La Nación says Clack's reading of Cook & Bedford 2013 inverted its finding of 90–100% consensus. - **Climate Fact Checks** has published several debunks of viral posts. Two examples: "[Viral Tweet Misrepresents Climate Science on CO2 and Global Warming](https://climatefactchecks.org/viral-tweet-misrepresents-climate-science-on-co2-and-global-warming/)" and "[Post falsely claims Earth warmer than present for 83% of past 10,000 years](https://climatefactchecks.org/post-falsely-claims-earth-warmer-than-present-for-83-of-past-10000-years/)". Search summaries attribute these to Clack ⚠️ (pages blocked to direct fetch; attribution of each not re-confirmed). ## Stats (X API, Oct 24, 2026, morning CT) | Followers | Following | Posts (lifetime) | Listed | |---:|---:|---:|---:| | 70,313 | 11,468 | 11,064 | 417 | That is about 11,000 posts in ~29 months, roughly 12–13 a day. In the sample, original posts drew a median of ~860 likes and ~13.7K views. ## Top posts in the sample (by likes) | Date (CT) | Post | Likes / views | Note | |---|---|---:|---| | Sep 20, 2026 | ["Globalism was sold with a promise of prosperity. In reality, it was the greatest redistribution of wealth in human history."](https://x.com/PeterDClack/status/2101595561090805979) | 6,966 / 164,317 | Theme T8 (conspiracy) | | Sep 21, 2026 | ["When we look at an oak, a sequoia, or a balsa tree… we're looking at solidified carbon and oxygen."](https://x.com/PeterDClack/status/2102176531338690982) | 3,896 / 59,495 | T3 (greening) | | Oct 16, 2026 | ["The evidence of history suggests the modern climate agenda is designed to reshape human society…"](https://x.com/PeterDClack/status/2111000973149897208) | 3,288 / 41,546 | T1/T8 | | Oct 1, 2026 | ["We live on a historically cold world…"](https://x.com/PeterDClack/status/2105598913571106900) | 3,247 / 58,277 | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on a Historically Cold World (2026-10-01)\|analysis]]: 🟡 | | Oct 9, 2026 | ["Earth's atmosphere is 99.96% nitrogen, oxygen and argon…"](https://x.com/PeterDClack/status/2108426740553146664) | 3,200 / 49,560 | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Trace CO2 and the Logarithmic Curve (2026-10-09)\|analysis]]: 🟡/❌ | | Sep 23, 2026 | ["Many of the onshore wind farms in the United Kingdom and Denmark have experienced drastic operating declines…"](https://x.com/PeterDClack/status/2102679892592902467) | 3,138 / 89,540 | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Wind Farm Decline (2026-09-23)\|analysis]]: 🟡 | | Sep 28, 2026 | ["A movement of global socialism, known as Glozism…"](https://x.com/PeterDClack/status/2104518859546103952) | 3,057 / 63,971 | T8 | ## What he posts about From the [[Users/@PeterDClack/Topical List|Topical List]] (102 items): 1. **Energy, minerals and China (18%).** Oil, coal and gas reserves, Hambach, copper, EVs, wind and solar supply chains, China's clean-tech dominance. 2. **Climate policy as conspiracy (16%).** "Globalism", "Glozism" (his term for a "global socialism" plot), COP, the UN and "wealth transfer". This matches ISD's 2023 description. 3. **Deep time / "we live in an ice age" (11%).** Phanerozoic averages, the Holocene, the Eemian, mostly from Judd et al. 2024. 4. **CO₂ physics, greening, oceans (~20% combined).** "Trace gas", logarithmic forcing, the ice-core lag, CO₂ as plant food, phytoplankton. 5. **Scenarios and the IPCC (4%).** RCP8.5 / SSP5-8.5 "implausible", AR7. 6. **Non-climate (~15%).** France and migration ("fragmentation of Western civilisation"), evolution and biology, snooker. **Style.** Long-form essays (X Premium notes) in confident, authoritative prose. He often recycles whole paragraphs across posts; the seed reuses text from Oct 12 and Oct 17. He cites real peer-reviewed papers, then reverses their conclusions. Images are often AI-generated infographics, some made by fans such as @awaveglobal ⚠️ (inferred). His replies are mostly short thanks to supporters ("Great analysis…", "Many thanks…"), with occasional curt dismissals ("Up yours ..."; "That's because I don't believe in it", on ocean acidification). ## Fact-check scorecard (this project) | Post | Verdict | |---|---| | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on High-CO2 Epochs and Biodiversity (2026-10-23)\|Oct 23 (+ Oct 24 reply): high-CO₂ epochs and biodiversity]] | ❌ misleading; GEOCARB 2001 CO₂ on a PhanDA chart; "no sea-level rise" ❌ | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on the Implausible 5.5C Scenario (2026-10-23)\|Oct 23: implausible 5.5°C (seed)]] | 🟡 mixed; the AR7-suspension link is ❌ | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on a Historically Cold World (2026-10-01)\|Oct 1: historically cold world]] | 🟡 geology right, "never a crisis" ❌ | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Trace CO2 and the Logarithmic Curve (2026-10-09)\|Oct 9: 99.96% / logarithmic]] | 🟡/❌ "half per 100 ppm" false; "oceans absent from IPCC" false | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on CO2 Lagging Temperature (2026-10-12)\|Oct 12 + Oct 3: CO₂ lag]] | ❌ misreads Parrenin 2013 / Shakun 2012 | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Dry Oil Wells Refilling (2026-10-14)\|Oct 14: dry oil wells]] | 🟢/🟡 mostly accurate (gas figure off) | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Flooding the Hambach Mine (2026-10-12)\|Oct 12: Hambach]] | ❌ "1 billion tonnes" vs. NRW's 110 Mt | | [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Wind Farm Decline (2026-09-23)\|Sep 23: wind decline]] | 🟡 overstated (partial; truncated) | **Pattern.** His numbers are often right: reserves, recovery factor, Phanerozoic averages, China's emissions share. The errors cluster in physics (the logarithmic curve, water vapour as a driver, CO₂ "computer analysis") and in the inferences he draws from the numbers. ## Interactions with @marshallpittman - **None found in the 102-item sample.** No replies to, mentions of, or quotes of @marshallpittman. - A full search of mentions and replies in either direction could not be run in the first session, because X tools were blocked ⚠️. - **Oct 24, 2026:** an X search for @marshallpittman in connection with the high-CO₂ epochs post and its thread returned **0 results**. ## Cross-links - [[Topics/Abiogenic Oil and the Fossil Fuel Debate/Abiogenic Oil and the Fossil Fuel Debate|Abiogenic Oil]]: his Oct 14 "dry wells refilling" post (residual-oil explanation, not abiogenic). - [[Topics/Expanding Earth and Plate Tectonics/People/Ned Nikolov|Ned Nikolov]] ([[Users/@nikolovscience/nikolovscience-x-profile|@nikolovscience]]): another prominent X voice denying CO₂-driven warming, via the pressure-based "atmospheric thermal effect". Clack has not argued Nikolov's theory in this sample. - [[Authors/@BjornLomborg/BjornLomborg-x-profile|@BjornLomborg]]: the climate hub's policy/economics author. Both post about Danish wind, but Lomborg's numbers are sourced and accurate: his [[Authors/@BjornLomborg/Post Analyses/Post Analysis - BjornLomborg on Danish Wind vs One Swedish Nuclear Plant (2026-10-22)|Danish wind vs Forsmark]] post compares annual output, while Clack's [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Wind Farm Decline (2026-09-23)|wind-farm decline]] post relies on a 2012 non-peer-reviewed report. Lomborg accepts the physics Clack disputes. - [[Topics/Climate Change Science and Policy Debate/People/Willis Eschenbach|Willis Eschenbach]]: author of the "CO2 Levels And Temperatures Since The Cambrian Explosion" chart Clack used on Oct 23. ## Gaps - No replies or quotes were pulled for the 5.5°C seed (X blocked then). For the Oct 23 high-CO₂ epochs post, 72 replies and quotes were pulled on Oct 24 (two reply pages and one quote page; a further reply page exists ⚠️). - The sample covers only Sep 18 – Oct 24, 2026, and many Sep posts are truncated. - The pre-2024 account's handle is unknown ⚠️. - Bio details from LinkedIn are marked ⚠️.