Greenhouse Gases, Global Sea Level and Ocean Temperature Broke Records in 2022

Amid a summer time of utmost warmth throughout the Northern Hemisphere, a global report led by the U.S. Nationwide Oceanic and Atmospheric Administration revealed Wednesday that greenhouse fuel concentrations, world sea stage, and ocean warmth content material hit report highs final yr.

“This report is a very worldwide effort to extra totally perceive local weather situations across the globe and our capability to look at them,” NOAA Nationwide Facilities for Environmental Info (NCEI) Director Derek Arndt stated of State of the Climate in 2022, which options contributions from greater than 570 scientists in over 60 nations.

“It’s like an annual bodily of the Earth system, and it serves current and future generations by documenting and sharing information that point out more and more excessive and altering situations in our warming world,” Arndt added of the thirty third annual report, printed by the Bulletin of the American Meteorological Society.

As humanity continued to extract and burn fossil fuels and interact in polluting agricultural practices, all three of the principle atmospheric greenhouse gases — carbon dioxide, methane, and nitrous oxide⁠ — reached report concentrations final yr. The CO2 common was 417.1 components per million, topping not solely fashionable observational data but additionally paleoclimatic data that return so far as 800,000 years.

“Persons are inflicting the most important identified change in world local weather since our transition to agriculture 1000’s of years in the past,” stated Paul Higgins, affiliate government director of the American Meteorological Society.

Within the ocean — which has absorbed most warming from greenhouse gases in current a long time — warmth content material rose to report highs final yr. The annual floor temperature was 0.45-0.54°F above the 1991-2020 common, making 2022 among the many six warmest years since record-keeping started within the 1800s and the most popular La Niña yr on report. The worldwide imply sea stage set a report for the eleventh straight yr, rising about 4 inches above the 1993 common, when satellite tv for pc measurements started.

Whereas roughly 58% of the ocean floor endured at the least one marine heatwave, temperatures additionally soared on land. Because the report particulars:

Europe as an entire noticed its second-warmest yr on report, with 16 particular person nations observing report heat on the nationwide scale. Information have been shattered throughout the continent through the summer time months as heatwaves plagued the area. On July 18, 104 stations in France broke their all-time data. At some point later, England recorded a temperature of 40°C [104°F] for the primary time ever. China skilled its second-warmest yr and warmest summer time on report. Within the Southern Hemisphere, the common temperature throughout New Zealand reached a report excessive for the second yr in a row. Whereas Australia’s annual temperature was barely beneath the 1991-2020 common, Onslow Airport in Western Australia reached 50.7°C [123°F] on January 13, equaling Australia’s highest temperature on report.


The consequences of rising temperatures and excessive warmth have been obvious throughout the Northern Hemisphere, the place snow-cover extent by June 2022 was the third smallest within the 56-year report, and the seasonal period of lake ice cowl was the fourth shortest since 1980. Extra frequent and intense heatwaves contributed to the second-greatest common mass steadiness loss for Alpine glaciers around the globe since thestart of the report in 1970. Glaciers within the Swiss Alps misplaced a report 6% of their quantity. In South America, the mix of drought and warmth left many central Andean glaciers snowfree by mid-summer in early 2022.

Practically a 3rd of worldwide land confronted average or worse drought in 2022, from a 63% footprint within the contiguous United States to the continuation of a 13-year megadrought in central Chile. The report notes that an ongoing drought in Africa has “led to crop failure, thousands and thousands of livestock deaths, water shortage, and inflated costs for staple meals objects.”

In the meantime, in South Asia, “Pakistan obtained round 3 times its regular quantity of monsoon precipitation in August, with some
areas receiving as much as eight occasions their anticipated month-to-month totals,” the report highlights. “Ensuing floods affected over 30 million folks, brought about over 1,700 fatalities, led to main crop and property losses, and was recorded as one of many world’s costliest pure disasters of all time.”

International situations final yr and Massive Oil’s record profits fueled calls for for daring motion to overtake agricultural practices and cease burning fossil fuels — which, because the report factors out, is “the principle driver of accelerating atmospheric CO2.” Such calls have continued in current months, as oil and fuel giants stored rewarding shareholders with hefty inventory buybacks and dividends throughout what has been one other traditionally sizzling summer time, based on information released Tuesday.

“Our planet has simply endured a season of simmering — the most popular summer time on report,” United Nations Secretary-Normal António Guterres stated Wednesday, lower than three months away from the U.N. COP28 summit. “Leaders should flip up the warmth now for local weather options.”

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