The heat continues: Earth hits sixth warmest year on record

NEW YORK: Earth may shrink into the sixth warmest year on record in 2021, according to several newly released temperature measurements.
And scientists say the exceptionally warm year is part of a long-term warming trend that is showing signs of accelerating.
Two US science agencies – NASA and the National Oceanic and Atmospheric Administration – and a private measurement group released their calculations for last year’s global temperatures on Thursday, and all said it was not far behind the 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 Nia – the natural cooling of parts of the central Pacific that globally changes weather patterns and brings cooler deep ocean waters to the surface – lowered global temperatures, as did its flip side. El Nio extended them 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 similar 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 climate scientist Zeke Hausfather of the Berkeley Earth Monitoring Group on the record, which will also be released in 2021. The place has been given. Sixth hottest. “It’s a long-term trend, and it’s an irresistible march to the upside.”
“The long-term trend is very, very clear. And it’s because of us. And it’s not going to go away until we reduce the amount of carbon dioxide in the atmosphere,” said climate scientist Gavin Schmidt, who leads NASA’s temperature team. Don’t stop growing.”
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 came from satellite measurements by the Japanese Meteorological Agency and the Copernicus Climate Change Service in 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 accelerating or not. Both Schmidt and Hausfather said early signs point to this but it’s 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, NASA’s then-chief climate scientist James Hansen made headlines when he testified to Congress about global warming in a year that was at the time the hottest on record. Now, 1988 is the 28th warmest year on record at 57.7 °C (14.3 °C).
Last year was the hottest 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, according to Berkeley Earth.
The deep ocean, where most of the heat is stored in the ocean, 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 of the oceans. 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. ,
North Carolina state climatologist Cathy Dallow, 39, who was not part of the new reports but said they make sense, said, “I only live in a warmer world and I wish younger generations could see that.” Don’t have to say. . It shouldn’t have been like this.”

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