Chronopin: Date tracker for historical and future events

Climate09/15/2026@BuildDesk

Orange County Opens the Frank R. Bowerman Landfill

Frank R. Bowerman Landfill, Irvine, California, USAOC Waste & Recycling

01/01/1990 - 12/31/1990CONFIRMED 85% CONFIDENCEOC Waste & Recycling’s own fact sheet states the Frank R. Bowerman Landfill opened in 1990.^[1]

In 1990, Orange County opened the Frank R. Bowerman Landfill in the hills above Irvine, California, which grew into the ninth-largest landfill in the United States.

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Weather09/21/2026@ClimateDesk

The 2003 Heat Wave Kills More Than 70,000 Europeans

Paris, France

08/01/2003 - 08/31/2003ESTIMATED 70% CONFIDENCEThe source^[1] gives months, not days — "The predominant heat was recorded in July and August" — with one firm peak: "1 August 2003 was the hottest day in centuries, with night temperatures well above 30 C". The pin covers August, the month the source's own statistics section is built around.

Europe had its hottest summer since at least 1540, with night temperatures staying above 30C and eight consecutive days over 40C in Auxerre. The death toll has been estimated at more than 70,000.

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Climate06/24/2017@ThePinGang

Five Pacific islands lost to rising seas as climate change hits

Starts 01/01/2014 CONFIRMED 87% CONFIDENCEHappened as dated, per iopscience.iop.org^[1]: "…ing the box below. If you are unable to complete the above request please contact us using the below…"

Using time series aerial and satellite imagery from 1947 to 2014 of 33 islands, along with historical insight from local knowledge, we have identified five vegetated reef islands that have vanished over this time period and a further six islands experiencing severe shoreline recession.

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Weather09/21/2026@ClimateDesk

Australia Burns Through the Black Summer

New South Wales, Australia

06/01/2019 - 02/29/2020ESTIMATED 50% CONFIDENCEThe source^[1] dates only the start by month — "early fires in Central Queensland led to a premature start to the bushfire season from June 2019" — and names no end day, so the pin runs from 1 June 2019 to the end of February 2020, the Australian summer the season is named for.

Over ten thousand fires burnt mainly across south-eastern Australia after an exceptionally dry year, in one of the most catastrophic fire seasons on record. Fires started early, from June 2019 in Central Queensland.

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Climate09/15/2026@BuildDesk

Klamath River Dams Fully Removed

Iron Gate Dam, Siskiyou County, California, United StatesKlamath River Renewal Corporation

Starts 10/02/2024CONFIRMED 90% CONFIDENCEHappened as dated, per the source^[1]: "The Klamath River restoration project completed the final work to remove the dams from the river".

Crews finished dismantling all four hydroelectric dams on the Klamath River in 2024, the largest dam-removal and river-restoration project in US history.

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Climate05/02/2023@ThePinGang

PepsiCo, which owns Frito-Lay and Quaker Oats, has set a goal to design 100% of its packaging to be recyclable, compostable, biodegradable or reusable by 2025.

PepsiCo…

Starts 01/01/2025 UNVERIFIED 73% CONFIDENCE

“Two years ago, if you think about our multipack packages, that’s our one ounce size in multipack servings, those packages were in another outer plastic. So we moved that from plastic into cardboard and recyclable cardboard,” he said.

That move alone was able to deliver 12 million pounds of plastic out of the environment, PepsiCo said

In April, Frito-Lay and Quaker Oats opened a new learning center for packaging innovation at Frito-Lay’s research and development headquarters in Texas, where it will field test, measure and analyze compostable packaging, aiming to make the process of testing products to certification-ready at least two to three times faster.

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Energy09/23/2026@EnergyDesk

B&W Wins Engineering Study for Alberta Air-Storage and Hydrogen Hub

Babcock & Wilcox…Marguerite Lake 826S substation, Municipal District of Bonnyville, Alberta, Canada

Starts 10/28/2025CONFIRMED 85% CONFIDENCEStated as done, per B&W's release "(AKRON, Ohio – October 28, 2025)": "announced today that it has been awarded a contract by Cache Power Corp. (Cache Power) to execute an engineering study"; no time of day was found.^[1]

Cache Power hired Babcock & Wilcox to engineer its BrightLoop hydrogen technology, up to 60 tonnes a day with the CO2 captured, into the 640 MW Marguerite Lake compressed-air energy storage plant near La Corey, Alberta. An Alberta Innovates grant pays for part of the study.

C$4.3M

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Energy09/23/2026@EnergyDesk

B&W Gets Go-Ahead to Supply SolveBright Carbon Capture to a US Power Plant

1200, East Market Street, East End, Goodyear Heights, Akron, Summit County, Ohio, 44305, United States

Babcock & Wilcox…

B&W Gets Go-Ahead to Supply SolveBright Carbon Capture to a US Power Plant

Starts 12/08/2025 11:30AMCONFIRMED 82% CONFIDENCEStated as done, per B&W's release "(AKRON, Ohio – December 8, 2025)": "announced today that it has received limited notice to proceed"; the Business Wire copy on Yahoo Finance is timestamped 2025-12-08T11:30:00Z (6:30 a.m. ET).^[1]

Babcock & Wilcox received a limited notice to proceed on engineering and long-lead purchasing for a SolveBright CO2-capture system at an unnamed existing US power plant, sized to capture more than 550,000 tons a year. The full contract, expected by March 2026, is worth an estimated $80 million; the plant is not named, so the pin sits at B&W's Akron headquarters.

$80M

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Climate09/15/2026@BuildDesk

Copenhagen Sets a 2025 Deadline to Become the World's First Carbon-Neutral Capital

København, Københavns Kommune, Region Hovedstaden, Danmark

City of Copenhagen

Copenhagen Sets a 2025 Deadline to Become the World's First Carbon-Neutral Capital

Starts 12/31/2025DELAYED 40% CONFIDENCEDate has moved, per the source^[1]: Copenhagen "will not be able to meet its ambitious goal to become climate-neutral by 2025"; the city now targets climate positivity by 2035 instead.

Copenhagen pledged in 2009 to become the world's first carbon-neutral capital city by 2025, aiming to offset its remaining emissions with a waste-to-energy plant's carbon-capture system.

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Infrastructure09/20/2026@BuildDesk

DC Water Launches the Boring Machine Mary Under the Potomac

West Potomac Park, Ohio Drive SW, Washington, D.C. 20024, United States

District of Columbia Water and Sewer Authority

DC Water Launches the Boring Machine Mary Under the Potomac

Starts 04/10/2026CONFIRMED 90% CONFIDENCEDC Water's^[1] own release of April 10, 2026 announces the launch as having happened that day.

DC Water lowered the tunnel boring machine Mary into a 100-foot-deep shaft in West Potomac Park and started her north towards Georgetown University, the first 2.4 miles of a 5.5-mile combined sewer overflow tunnel. The $819 million tunnel is part of the Clean Rivers Project and will cut Potomac overflow events from 74 a year to four; a second Herrenknecht machine, Emily, bores south towards Joint Base Anacostia-Bolling.

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Climate09/23/2026@ClimateDesk

Amazon Commits $20M to Colorado River Water Conservation

Amazon…Hoover Dam, Mohave County, Arizona, United States

Starts 09/21/2026CONFIRMED 81% CONFIDENCEAmazon's announcement, published September 21, 2026, says "Amazon is launching the Colorado River Basin Collaborative (CRBC) and plans to invest $20 million".^[1]

Amazon pledges $20 million and launches the Colorado River Basin Collaborative, a corporate coalition with Aldi, The Coca-Cola Foundation, Ecolab and others that aims to raise $100 million for water projects across the basin in two years.

$20M

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Architecture09/20/2026@BuildDesk

King Salman Park's First Phase Opens on Riyadh's Old Airport

King Salman Park, Riyadh, Saudi ArabiaKing Salman Park Foundation

Starts 10/01/2026ESTIMATED 50% CONFIDENCEThe February 2026 report says "Initial phases are expected to open in late 2026, with substantial completion targeted for 2027", a season recorded here as the first day of the final quarter.^[1]

The 16.9 sq km park is being laid out over the grounds of Riyadh's former airport, with an Art Park opening first and a Royal Arts Complex of thirteen structures, designed by the late Ricardo Bofill, arranged along a 1.5 km central boulevard. Omrania leads the design with Henning Larsen on the masterplan, and the park carries an estimated cost of SAR 72 billion.

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Law09/23/2026@LawDesk

Supreme Court Opens Its Term With Boulder's Climate Case Against Suncor

Suncor Energy…United States Supreme Court Building, 1 First Street, Northeast, Washington, D.C.

Starts 10/05/2026 2:00PMSCHEDULED 84% CONFIDENCEScheduled, per the Court's docket: "SET FOR ARGUMENT on Monday, October 5, 2026"; the October argument calendar lists 25-170 as case (1) that Monday and states "Court convenes at 10 a.m."^[1]

On the first Monday in October the Supreme Court hears Suncor and ExxonMobil's bid to end Boulder's state-law suit seeking climate-change damages. The ruling will decide whether federal law blocks more than two dozen similar suits by cities, counties and states.

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Climate09/21/2026@ClimateDesk

COP31 Opens in Antalya

United Nations Framework Convention on Climate ChangeAntalya Expo Center, Antalya, Türkiye

11/09/2026 - 11/20/2026SCHEDULED 80% CONFIDENCEUNFCCC^[1] states the Government of Türkiye will host the thirty-first session "from Monday, 9 November, to Friday, 20 November 2026"; the pin's exclusive end is the following midnight UTC.

The 31st UN climate conference runs 9-20 November 2026 at the Antalya Expo Center, hosted by Türkiye, with about 100,000 participants expected.

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Climate09/21/2026@ClimateDesk

IPCC Publishes Its Special Report on Cities

Intergovernmental Panel on Climate ChangeIPCC Secretariat, Geneva, Switzerland

Starts 03/31/2027ESTIMATED 73% CONFIDENCEThe IPCC^[1][2] reports listing gives the month only — "Special Report Special Report on Climate Change and Cities March 2027" — so the pin sits on the last day of that month, as a month-only date does.

The Intergovernmental Panel on Climate Change delivers the first special report devoted to climate change and cities, due in March 2027. It is one of three special and methodology reports in the AR7 cycle.

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Climate09/21/2026@ClimateDesk

COP32 Brings the Climate Talks to Addis Ababa

United Nations Framework Convention on Climate ChangeAddis Ababa, Ethiopia

Starts 11/30/2027ESTIMATED 70% CONFIDENCEEthiopia's hosting was endorsed by the African Group on the second day of COP30 and the conference is set for November 2027, but UNFCCC^[1] has not yet published the exact days - so the pin takes the last day of the stated month.

The 32nd UN climate conference is held in Addis Ababa in November 2027, the first COP in sub-Saharan Africa in sixteen years, with the African Group holding the presidency.

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