2023 was warmest year on record “by a huge margin,” says WMO

In all six datasets, used by the WMO, 2023 was recognized as the warmest year on record.(Radio-Canada)

The datasets have been crunched and indicate 2023 was the warmest year on record “by a huge margin,” the World Meteorological Organization (WMO) said on Friday. 

The annual average global temperature for the year exceeded pre-industrial levels (1850-1900) by 1.45 C, the organization said. 

“Humanity’s actions are scorching the earth,” UN Secretary-General António Guterres said in statement.

“2023 was a mere preview of the catastrophic future that awaits if we don’t act now. We must respond to record-breaking temperature rises with path-breaking action.”

July and August recorded exceptionally hot months, while new monthly records were also set between June and December.

Reminder of efforts needed to reach Paris agreement, says UN Sec-Gen

The WMO described the 2023 annual global temperature as “symbolic” given the Paris climate agreement target seeks to control the rise in temperature averaged over decades to not exceed 1.5 C above pre-industrial levels.

“We can still avoid the worst of climate catastrophe. But only if we act now with the ambition required to limit the rise in global temperature to 1.5 degrees Celsius and deliver climate justice,” Guterres said. 

The ten-year average from 2014-2023 was 1.20 C above the 1850-1900 average according the six datasets used by the WMO. (WMO)

WMO Secretary-General Celeste Saulo said the shift from La Niña to El Niño in the middle of year contributed to the higher temperatures (La Niña is a climate pattern that cools sea surface temperature, while El Niño warms the sea surface temperature), but that anthropogenic impacts are affecting temperature rise long term. 

“While El Niño events are naturally occurring and come and go from one year to the next, longer term climate change is escalating and this is unequivocally because of human activities,” Saulo said. 

The WMO used six datasets to make their calculations.

The are from the United States National Oceanic and Atmospheric Administration (NOAA); NASA’s Goddard Institute for Space Studies (NASA GISS);  the United Kingdom’s Met Office Hadley Centre and the University of East Anglia’s Climatic Research Unit (HadCRUT); and the Berkeley Earth Group.

Reanalysis datasets from the European Centre for Medium Range Weather Forecasts and its Copernicus Climate Change Service, along with the Japan Meteorological Agency (JMA), are also used. 

The information is gathered through observing sites, ships, global marine network buoys, marine observations and satellites.

“The climate crisis is worsening the inequality crisis. It affects all aspects of sustainable development and undermines efforts to tackle poverty, hunger, ill-health, displacement and environmental degradation,” says WMO Secretary-General Celeste Saulo, shown here in a file photo. (Martial Trezzini/Keystone via AP)

Saulo said she hopes the most recent analysis spurs decision makers to recommit to reaching the Paris agreement climate targets. 

“We cannot afford to wait any longer. We are already taking action but we have to do more and we have to do it quickly,” she said.

“We have to make drastic reductions in greenhouse gas emissions and accelerate the transition to renewable energy sources.”

Comments, tips or story ideas? Contact Eilís at eilis.quinn(at)cbc.ca 

Related stories from around the North: 

Canada: Hot and dry July saw temperature records topple in the Yukon, CBC News

Finland : Record average September temperatures stretch into Northern Finland, Eye on the Arctic

Greenland: Alarming, above-average ice loss in Greenland due to rising temperatures, Eye on the Arctic

Norway: Polar heat record. July average above 10°C, The Independent Barents Observer

Sweden: After icy record last week – Kvikkjokk is now Sweden’s warmest place, Radio Sweden

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