The main purpose of this ongoing blog will be to track planetary extreme, or record temperatures related to climate change. Any reports I see of ETs will be listed below the main topic of the day. I’ll refer to extreme or record temperatures as ETs (not extraterrestrials).😜
Here is a new feature for this blog, which I will add daily. This is the latest inciteful Green News Report from my friends Desi Doyen and Brad Friedman at Progressive Voices. Hit ‘continue reading,’ listen, then hit return to see my daily topics:
Extreme Temperature Diary Saturday May 30th, 2026/Main Topic: Hottest Year Ever Recorded Set to Arrive Before 2030, Warns New UN Report
Dear Diary. Globally, the hottest year in human history was 2024 in association with the last strong El Niño. El Niño’s add heat to the atmosphere. All the while climate change continues to trap more outgoing thermal radiation every year, not just when El Niño’s occur.
According to the World Meteorological Organization (WMO), six independent datasets confirm that 2024’s global mean surface temperature was 1.55 °C (±0.13 °C) above the pre-industrial average wmo.int. This marks the first calendar year in history to exceed the 1.5 °C threshold set in the Paris Agreement, though the long-term climate goal remains within reach if warming is kept below 2 °C wmo.int.
We have a strong El Niño developing this year, so there is an outside chance that 2026 will be our next record warm year. My educated spidey sense tells me that 2027 will be a slam dunk for the next hottest year on record. After that global temperatures will level off but go down just a hair from 2028 into 2029 as neutral and/or possibly LA Niña conditions set in. By 2030 we may see another El Niño. Wash, rinse, repeat as global temperatures continue to spiral upward.
That’s my two cents. Here are details on this subject from Common Dreams:
Hottest Year Ever Recorded Set to Arrive by 2030, Warns New UN Report | Common Dreams
Women collect contaminated and polluted water from a partially dried community well on May 28, 2026 in the outskirts of Nashik, Maharashtra, India. (Photo by Ritesh Shukla/Getty Images)
Hottest Year Ever Recorded Set to Arrive by 2030, Warns New UN Report
The lead author of the new report noted that predicted weather patterns could mean the record is shattered as soon as next year.
May 28, 2026
Global temperates are likely to hit their highest average level ever within the next four years, according to a report published Thursday by the United Nations’ World Meteorological Organization.
Overall, WMO’s report projects an 86% chance that the world will experience its warmest year ever between 2026 and 2030, with a 91% chance that “the global mean near-surface temperature will temporarily exceed 1.5°C above the 1850-1900 average levels for at least one year between 2026 and 2030.”
Exceeding temperatures from the pre-industrial average by 1.5°C “risks unleashing ever more severe climate change impacts and extreme weather, and decreases adaptation option,” the report notes.
Leon Hermanson, lead author of the report, said there’s a good chance that 2027 will break all-time temperature records set in 2024 given that meteorologists are predicting an El Niño weather pattern to develop this summer and continue through the end of this year.
One particularly troubling finding in the report is that “Arctic temperatures over the next five extended northern hemisphere winters (November-March) are predicted to be 2.8°C above average temperatures for 1991-2020, an anomaly more than three and half times that of global mean temperature anomaly over the same period.”
These higher Arctic temperatures mean likely further reductions in ice in the Barents Sea, Bering Sea, and Sea of Okhotsk, the report warns.
Simon Stiell, executive secretary of the United Nations Framework Convention on Climate Change, said in a Thursday interview with The Guardian that Europe’s current heatwave is a preview of what’s to come the longer the global climate crisis goes unaddressed.
“Protecting human lives, businesses and economies from extreme heat and the many other soaring costs of climate change is core business for every nation,” said Stiell, “and it starts with kicking the fossil fuel addiction much faster.”
Our work is licensed under Creative Commons (CC BY-NC-ND 3.0). Feel free to republish and share widely.
Brad Reed is a staff writer for Common Dreams.
Here are some “ETs” recorded from around the U.S. the last couple of days, their consequences, and some extreme temperature outlooks, as well as any extreme precipitation reports:
Here is More Climate News from Saturday:
(As usual, this will be a fluid post in which more information gets added during the day as it crosses my radar, crediting all who have put it on-line. Items will be archived on this site for posterity. In most instances click on the pictures of each tweet to see each article. The most noteworthy items will be listed first.)