---
title: "Colorado Glaciers Thinned Dramatically in 2026"
publication: "MediaBias News"
url: "https://mediabias.news/climate/colorado-glaciers-thinned-dramatically-in-2026"
api: "https://mediabias.news/api/v1/stories/colorado-glaciers-thinned-dramatically-in-2026"
markdown: "https://mediabias.news/climate/colorado-glaciers-thinned-dramatically-in-2026.md"
audio: "https://mediabias.news/api/audio/colorado-glaciers-thinned-dramatically-in-2026"
category: "Climate"
area: "United States"
published: "2026-10-28T01:05:14.836Z"
source_reported: "2026-10-28T00:22:13.752Z"
updated: "2026-10-28T01:05:14.836Z"
trust_score: 50
critic_score: 60
hype_score: 20
assessment_type: "coverage-and-source-reporting-analysis"
fact_check_status: "not-performed"
coverage_measured: "2026-10-28T03:00:27.322237+00:00"
---

# Colorado Glaciers Thinned Dramatically in 2026

*Record warm temperatures and low snowpack led to accelerated melting of state's ice masses.*

**Scores for the source reporting** (0-100, assessing the original journalism this article was written from, not this write-up): 

- Trust 50 of 100, higher is better. The central claim is attributed to a named body, and multiple independent outlets reported it.
- Craft 60 of 100, higher is better. The reporting clearly separates fact from comment and uses specific figures, dates, and places.
- Hype 20 of 100, lower is better. The language is measured and proportionate, with no notable sensationalism.

Scored by MediaBias News; method at https://mediabias.news/methodology.

**The short version**

- Colorado's major glaciers thinned significantly in 2026, with some losing over 12 feet of ice.
- The rate of glacier thinning in 2026 doubled the average of the preceding five years.
- Record low mountain snow and high temperatures were identified as the primary causes for the accelerated melt.
- The complete melting of St. Mary's Glacier in September 2026 highlights the severity of the ice loss.

Colorado's most prominent glaciers experienced dramatic thinning in 2026, losing ice at double the rate of the previous five years. Record low snowpack and high temperatures contributed to the accelerated melt, raising concerns about water sources and mountain hazards. The Andrews Glacier lost more than 12 feet, the Arapaho Glacier nearly 10 feet, and the Isabelle Glacier about 6.5 feet during the year. St. Mary's Glacier, a popular snowfield, melted entirely in September 2026.

Glaciologist Dan McGrath of Colorado State University led research into the 2026 melt rates, noting that the exceptional conditions of record-low snow followed by record summer heat left the ice masses exposed. He stated that this pattern of glacier loss is consistent with observations worldwide, including in the Alps and other western U.S. mountain ranges. Globally, more than 7 trillion tons of ice has been lost since 2000. Switzerland's glaciers lost 5.5% of their volume in 2026, the second-largest annual drop on record.

McGrath suggested that Colorado's remaining glaciers could disappear within the next 20 years, as they are currently out of balance with the climate. He noted that the Andrews Glacier has already lost half its ice since 2017. The runoff from these glaciers supplies water to ecosystems across the western United States, and their disappearance may increase vulnerability to drought. Wildfires also contribute to melting by darkening glacier surfaces with soot, making them absorb more sunlight.

## Disagreement on glacier loss rates

While the Washington Top News report states that the 2026 thinning rates doubled that of the prior five years, and that in the decade before that, thinning measured a foot or less per year, other reports do not provide this comparative historical data. The Washington Top News report also states that the Andrews Glacier lost half its ice since 2017, a detail not present in other accounts.

## What the coverage left out

None of the left, centre, or right-rated digests mention the specific detail that the Andrews Glacier has already lost half its ice since 2017, a fact reported by Washington Top News. Additionally, no reports mention the potential for glaciers to re-form if carbon pollution declines substantially and temperatures drop, as stated by Washington Top News.

## Who covered it

Shares of the 30 covering outlets with a published leaning rating:

- Left: 53% (16)
- Centre: 34% (10)
- Right: 13% (4)

6 of 36 covering outlets carried no usable leaning rating and were excluded from those percentages. Coverage measured 2026-10-28T03:00:27.322237+00:00.

**Coverage watch:** developing. Checked 9 times; 0 checks found a material change. Most recently checked 2026-10-28T03:15:18.906Z.

## How the sides framed it

### Left

- Left-rated reports led with the dramatic thinning of Colorado's glaciers due to record low snow and heat. They highlighted the global context of glacier loss, including Switzerland's 5.5% ice volume drop in 2026 and the worldwide loss of over 7 trillion tons of ice since 2000. These reports also mentioned the potential for increased drought vulnerability in the western U.S. and the role of wildfires in accelerating melt. The Independent and The Independent (US) reports noted that the 2026 thinning rates doubled the rate of the prior five years.

### Centre

- Centre-rated reports focused on the dramatic thinning of Colorado's glaciers in 2026, attributing it to record low mountain snow and warm temperatures. They noted that this trend is consistent with glacier loss observed in Europe and the western United States. Reports from this group mentioned the specific losses for the Andrews, Arapaho, and Isabelle glaciers, and the complete melt of St. Mary's Glacier. Several centre-rated digests also included research from Dan McGrath.

### Right

- Right-rated reports highlighted the dramatic thinning of Colorado's glaciers in 2026 due to record low snow and warm temperatures. These reports noted that similar glacier loss has been observed in Europe and across the western United States. Digests from this group frequently mentioned research from Dan McGrath and the specific losses for the Andrews, Arapaho, and Isabelle glaciers.

**Provisional coverage gap:** right. The watch is not closed, so this is not yet a settled blindspot finding.

## Factuality profile of the covering outlets

These are published factuality ratings of the outlets, not a verdict on whether this story or its claims are true.

- mixed: 2
- high: 12
- unknown: 6
- veryHigh: 16

## Verification scope

This page compares coverage and scores the source reporting. It is not a ClaimReview verdict on whether the underlying event or claim is true.

## Original reporting this was written from

- [Los Angeles Times](https://latimes.com/espanol/eeuu/articulo/2026-10-27/glaciares-de-colorado-en-vias-de-desaparecer-por-falta-de-nieve-y-calor-extremo-estudio) — Glaciares De Colorado, in the Process of Disappearing Due to Lack of Snow and Extreme Heat: Study
- [Telemundo Denver](https://telemundodenver.com/noticias/local/glaciares-colorado-vias-desaparecer-falta-de-nieve-calor-extremo/2485933) — Glaciares De Colorado, in the Process of Disappearing Due to Lack of Snow and Extreme Heat: Study
- [vietnamplus.vn](https://vietnamplus.vn/bien-doi-khi-hau-khien-cac-song-bang-o-colorado-tan-chay-nhanh-chong-post1144636.vnp) — Climate Change Is Causing Glaciers in Colorado to Melt Rapidly.
- [The Record](https://troyrecord.com/2026/10/27/climate-colorado-glaciers-thinned) — Colorado’s glaciers thinned dramatically due to record low snow and heat in 2026
- [Vanguardia](https://vanguardia.com.mx/noticias/internacional/alerta-nuevo-estudio-que-los-glaciares-de-colorado-estan-en-vias-de-desaparecer-PD24419574) — New Study Alerts that Colorado Glaciers Are in the Process of Disappearing
- [El Comercio](https://elcomercio.pe/mag/usa/local-us/los-glaciares-de-colorado-pierden-hielo-a-un-ritmo-acelerado-por-las-altas-temperaturas-nnda-nnrt-noticia) — Colorado Glaciers Lose Ice at Accelerated Rate by High Temperatures · Global Voices
- [Phys.org](https://phys.org/news/2026-10-colorado-glaciers-thinned-due.html) — Colorado's glaciers thinned dramatically due to record-low snow and heat in 2026
- [Independent Español](https://independentespanol.com/noticias/medio-ambiente/glaciares-de-colorado-en-vias-de-desaparecer-por-falta-de-nieve-y-calor-extremo-estudio-b3074192.html) — Glaciares De Colorado, in the Process of Disappearing Due to Lack of Snow and Extreme Heat: Study
- [Washington Top News](https://wtop.com/national/2026/10/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado’s glaciers thinned dramatically due to record low snow and heat in 2026 – WTOP News
- [WBAL](https://wbal.com/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado's glaciers thinned dramatically due to record low snow a
- [Winnipeg Free Press](https://winnipegfreepress.com/arts-and-life/life/greenpage/2026/10/27/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [City News](https://toronto.citynews.ca/2026/10/27/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Record](https://therecord.com/life/colorado-s-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_96e8f6dd-3e94-52bf-8d53-580985b0723a.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Seattle Times](https://seattletimes.com/nation-world/nation/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado’s glaciers thinned dramatically due to record low snow and heat in 2026
- [The Independent](https://independent.co.uk/news/colorado-glaciers-denver-switzerland-colorado-state-university-b3074169.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Associated Press News](https://apnews.com/article/glaciers-melt-climate-change-colorado-0dd833f733e49fd9393cfa79cbc28fb5) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Independent (US)](https://the-independent.com/news/colorado-glaciers-denver-switzerland-colorado-state-university-b3074169.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Independent Online](https://dailyindependent.com/national/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_e829c377-ae62-5d6f-9f2e-68607576b25b.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Madison Courier](https://madisoncourier.com/ap/news/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_262b5cba-cbb6-508f-ba05-9a323392833a.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Richmond Register](https://richmondregister.com/ap/national/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_b712a8d7-4e44-55d7-94e2-4114580208b5.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Times-Tribune](https://thetimestribune.com/news/national_news/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_da7f4ddc-88c2-563e-91f8-5b13509d89fa.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Daily Star](https://thedailystar.com/news/state/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_614478e8-e86a-5dd5-8554-8c715f51d16e.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Grand Junction Daily Sentinel](https://gjsentinel.com/news/colorado/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_234be2ca-f899-51c3-8360-a392aee262d3.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Star Democrat](https://stardem.com/ap/nation/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_f8305335-8a62-54e0-958a-fe538b8514bb.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Crossville Chronicle](https://crossville-chronicle.com/news/ap_news/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_1c812400-133b-507b-a868-8294a20f3365.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [The Batesville Daily Guard](https://guardonline.com/news/national/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_c03e3e08-f283-5cba-84be-1a2459adecfa.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [union-bulletin.com](https://union-bulletin.com/news/national/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_1fdbda56-291b-5430-a44d-ed9fad3750b3.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Durango Herald](https://durangoherald.com/articles/associated-press/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado’s glaciers thinned dramatically due to record low snow and heat in 2026
- [Kokomo Tribune](https://kokomotribune.com/news/nation_world_news/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_c70771f4-df4a-57b4-9733-472567181b78.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [abc News](https://abcnews.com/US/wireStory/colorados-glaciers-thinned-dramatically-due-record-low-snow-137601440) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [WKMG](https://clickorlando.com/news/national/2026/10/27/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Bangor Daily News](https://bangordailynews.com/2026/10/27/nation/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [El Vocero de Puerto Rico](https://elvocero.com/el-mundo/glaciares-de-colorado-en-v-as-de-desaparecer-por-falta-de-nieve-y-calor-extremo/article_b417c133-3d18-432e-8a88-bd918fb5d15e.html) — Colorado Glaciers on the Way to Disappear Due to Lack of Snow and Extreme Heat
- [Owensboro Messenger-Inquirer](https://messenger-inquirer.com/ap/ap_national_news/colorados-glaciers-thinned-dramatically-due-to-record-low-snow-and-heat-in-2026/article_268a2b07-7339-5cbe-b64d-ab1e0c77e73e.html) — Colorado's glaciers thinned dramatically due to record low snow and heat in 2026
- [Sentinel Colorado](https://sentinelcolorado.com/metro/snowpack-reached-record-lows-while-heat-soared-across-colorado-in-2026) — Snowpack reached record lows while heat soared across Colorado in 2026
- [Coyote Gulch](https://coyotegulch.blog/2026/10/24/an-astonishing-year-for-heat-in-colorado-heat-across-state-surpassed-old-record-set-in-1934-by-two-degrees-and-of-course-snowpack-was-worst-ever-too-allen-best-bigpivots-com) — An astonishing year for heat in #Colorado: Heat across state surpassed old record set in 1934 by two degrees. And, of course, snowpack was worst ever, too — Allen Best (BigPivots.com)

## Questions

**How much did Colorado's glaciers shrink in 2026?**

Colorado's most prominent glaciers thinned dramatically in 2026. The Andrews Glacier lost over 12 feet, the Arapaho Glacier lost nearly 10 feet, and the Isabelle Glacier lost about 6.5 feet. This rate of thinning doubled the average of the prior five years.

**What caused the accelerated glacier melt in Colorado?**

Record low mountain snowpack and record warm temperatures in 2026 were identified as the primary causes for the accelerated melting of Colorado's glaciers. These conditions left the ice masses exposed to higher temperatures.

**What are the potential consequences of this glacier loss?**

The disappearance of glaciers threatens water sources for ecosystems across the western United States, potentially increasing vulnerability to extreme drought. It also increases mountain hazards. Globally, glacier loss contributes to sea level rise.

---

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