Saturday, January 29, 2022

The heat persists: Earth hits sixth warmest year on record | Nation World News

According to several newly released temperature measurements, Earth shrinks into the sixth warmest year on record in 2021.

And scientists say an exceptionally warm year is part of a long-term warming trend Which is showing signs of bullishness.

Two US science agencies – NASA and the National Oceanic and Atmospheric Administration — and a private measurement group released its calculations for last year’s global temperatures on Thursday, and everyone said it was not far behind ultra-hot 2016 and 2020.,

Six separate calculations found that 2021 was between the fifth and seventh warmest years since the 1800s. NASA said 2021 tied with 2018 for the sixth warmest, while NOAA itself ranked sixth last year, ahead of 2018.

Scientists say that La Nias – The natural cooling of parts of the Central Pacific, which globally alters weather patterns and brings deep ocean waters to the surface – reduces global temperatures, as on its flip side, the El Nio called them Extended in 2016.

Still, he said 2021 was the hottest La Nia year on record and that the year did not represent a cooling of human-caused climate change, but provided the same warmth.

“So it’s not quite as prominent as being the hottest on record, but give it a few more years and we’ll see another of those,” said Berkeley Earth climate scientist Zeke Hausfather. The monitoring group that ranked 2021 as the sixth warmest. “It’s a long-term trend, and it’s an irresistible upward march.”

“The long-term trend is very clear. And it’s because of us. And it won’t end until we stop increasing the amount of carbon dioxide in the atmosphere,” said Gavin Schmidt, lead climate scientist on NASA’s temperature team. “

The past eight years have been the eight warmest on record, NASA and NOAA data agree. Their data show that global temperatures, over an average 10-year period to overcome natural variability, are about 2 degrees (1.1 °C) warmer than they were 140 years ago.

Other 2021 measurements Japanese Meteorological Agency . have come from and satellite measurements by the Copernicus Climate Change Service. n Europe and the University of Alabama in Huntsville,

About eight to 10 years ago, there was such a significant jump in temperature that scientists have started to see whether the temperature is increasing rapidly or not. Both Schmidt and Hausfather said that early signs point to the same but it is hard to know for sure.

“I think you can see the acceleration, but whether it’s statistically strong is not at all clear,” Schmidt said in an interview. “If you look at the last 10 years, how many of them are far above the trend line of the last 10 years? almost all of them.”

Last year the global average temperature was 58.5 degrees (14.7 Celsius), according to NOAA. In 1988, James Henson, the then chief climate scientist at NASA, made headlines When he testified to Congress about global warming in a year that was the hottest on record at the time. Now, 1988 is the 28th warmest year on record at 57.7 °C (14.3 °C).

According to Berkeley Earth, last year was the warmest year on record with 1.8 billion people in 25 Asian, African and Middle Eastern countries, including China, Nigeria, Bangladesh, Iran, Myanmar and South Korea.

The deep ocean, where most of the heat is stored in the oceans, also set a warming record in 2021, according to a separate new study.,

“Ocean warming, coral bleaching and endangering the marine life and fish populations we rely on globally for about 25% of our protein intake are destabilizing Antarctic ice shelves and causing large-scale warming.” are threatening the scale… sea level rise if we don’t act, said study co-author Michael Mann, a climate scientist at Pennsylvania State University.

According to the calculations of NOAA or NASA, the last time Earth had a cooler than normal year was in 1976. This means that 69% of the people on the planet – more than 5 billion people under the age of 45 – have never experienced a year like this, based on UN data. ,

Cathy Dello, 39, a North Carolina state climatologist who was not part of the new reports but said they make sense, said, “I only live in a warmer world and I wish the younger generation had Don’t have to say that.. It shouldn’t have been like this.”

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See more Associated Press climate coverage https://apnews.com/hub/climate,

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Follow Seth Borenstein on Twitter: @borenbears,

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The Associated Press Department of Health and Science receives support from the Howard Hughes Medical Institute’s Department of Science Education. Associated Press is solely responsible for all content.

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