Climate emergency: 1.56°C is the estimated global-average temperature for the past twelve months (March 2023–February 2024) above the 1850-1900 pre-industrial average.

[Renaud de RICHTER]

Reminder of previous sad records:

* the global average temperature for 2023 is estimated to be 1.48°C warmer than the 1850-1900 average designated as the pre-industrial level.

* the 1.5°C  warming threshold for an entire 12-month period, was passed with February 2023 to January 2024 running 1.52°C (2.74 degrees Fahrenheit) hotter than pre-industrial levels.

https://climate.copernicus.eu/copernicus-february-2024-was-globally-warmest-record-global-sea-surface-temperatures-record-high

Bonn, 07/03/2024

Copernicus: February 2024 was globally the warmest on record – Global Sea Surface Temperatures at record high

• February 2024 was the warmest February on record globally, with an average ERA5 surface air temperature of 13.54°C, 0.81°C above the 1991-2020 average for February and 0.12°C above the temperature of the previous warmest February, in 2016.

• This is the ninth month in a row that was the warmest on record for the respective month of the year.
   
• The month was 1.77°C warmer than an estimate of the February average for 1850-1900, the designated pre-industrial reference period. 
   
• The global-average temperature for the past twelve months (March 2023–February 2024) is the highest on record, at 0.68°C above the 1991-2020 average and 1.56°C above the 1850-1900 pre-industrial average.
   
• The daily global average temperature was exceptionally high during the first half of the month, reaching 2°C above the 1850-1900 levels on four consecutive days (8–11 February).
   
• European temperatures in February 2024 were 3.30°C above the 1991-2020 average for February, with much-above average temperatures experienced in central and eastern Europe. 
   
• Outside Europe, temperatures were above average over northern Siberia, central and northwest North America, the majority of South America, across Africa, and in western Australia.
   
• El Niño continued to weaken in the equatorial Pacific, but marine air temperatures in general remained at an unusually high level.
   
• The average global sea surface temperature (SST) for February 2024 over 60°S–60°N was 21.06°C, the highest for any month in the dataset, above the previous record of August 2023 (20.98°C). Sea surface temperature is defined over the global extrapolar ocean, from 60°S to 60°N. This is used as a standard diagnostic for climate monitoring.
   
• The average daily SST reached a new absolute high of 21.09°C at the end of the month.

[Renaud de RICHTER]

FYI, message forwarded

Le jeu. 7 mars 2024 à 11:13, Denis Bonnelle <dbon...@ipsl.fr> a écrit :

Thank you Renaud.

Most important thing to do : explain that this is because of El Niño. Otherwise, in one or two years' time, the climate deniers will wake up and say once again : "oh, look, the climate is starting to cool down, we were right, climate change is a hoax, here is the evidence".

Best,

Denis.

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De: "Renaud de RICHTER" <renaud.d...@gmail.com>
À: "Carbon Dioxide Removal" <CarbonDiox...@googlegroups.com>, "geoengineering" <geoengi...@googlegroups.com>, "Atmospheric Methane Removal Community" <atmospheric-methan...@googlegroups.com>, "healthy-planet-action-coalition" <healthy-planet-...@googlegroups.com>
Cc: "Leon Di Marco" <len...@gmail.com>
Envoyé: Jeudi 7 Mars 2024 11:06:56
Objet: Climate emergency: 1.56°C is the estimated global-average temperature for the past twelve months (March 2023–February 2024) above the 1850-1900 pre-industrial average.