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Climate change: promises will mean an increase of 2.4 ° C


America is warming every decade, new numbers reveal

New data on “normal” temperature and climate variables in the United States have revealed that much of the country is warming and becoming increasingly wetter every decade – and some experts say warming trends are. comparable to what one would expect from greenhouse gases. induced climate change. “Normals,” as they are called by meteorologists, are determined based on meteorological factors such as temperature and precipitation that have been compiled by researchers over the past 30 years. These figures are then calculated as averages for the 30-year period. Every 10 years, the American normals are reviewed and updated by scientists from the National Climatic Data Center (NCDC) of the National Oceanic and Atmospheric Administration (NOAA). The first time the normals were calculated was for the period 1901 to 1930, and at that time it was measured by the World Meteorological Organization. The United States eventually adopted the same 30-year system. On Tuesday, the normals for the past decade, with data ranging from 1991 to 2020, were released by the NCDC. The last report published measured normals for the period 1981 to 2010. Although this is a report, it is actually a set of data that people can refer to when needed. that NOAA also created explanatory web pages to help people navigate the data. Figures released for the past decade reveal that the United States continues to heat up as each decade passes, Bernadette Woods Placky, chief meteorologist and director of the Climate Matters program at Climate Central, told AccuWeather National Reporter Emmy Victor. In this file photo from March 10, 2021, a woman walks along the beach under rain clouds in Seal Beach, California. planet, according to a large government study published on Tuesday, April 6, 2021, which concludes that the situation in the region is worsening. (AP Photo / Jae C. Hong, file) The eastern United States has also become more humid, while the West has become drier. She said rising temperatures may play a role in changing rainfall patterns and that climate change “is supercharging our water cycle.” As the planet warms, water on the surface evaporates into the atmosphere, resulting in even harder rain than before. However, as the Earth’s atmosphere is constantly trying to reach equilibrium, not all places experience more precipitation. “As the southwest becomes even drier, there is less moisture to evaporate, allowing more of the sun’s energy to go directly into the heating of the surface. which also helps explain the rapid warming in this region, ”wrote Brett Anderson, AccuWeather senior meteorologist. a recent blog post on the subject. Woods Placky explained that in drier areas such as the West, precipitation tends to be heavier than ever when it finally arrives. “We are seeing a mixed signal,” she said. “It’s getting drier and drier, but when it goes down, it falls under these showers.” This is essential data for the daily work of forecasters, so news is important in the weather community. “Tracking weather normals allows meteorologists to put the weather forecast today (or this year) in context with recent history, detect trends and assess the rarity of current weather events in relation to to history, ”said Jesse Ferrell, AccuWeather weather editor. Rod Bradshaw stands in a wheat field on his farm near Jetmore, Kan., Wednesday, January 13, 2021. Bradshaw, who claims to be the last black farmer in Hodgeman County, is concerned about systemic discrimination by government agencies and agricultural lenders. and the courts have reduced the number of black farmers in the United States from about one million in 1920 to less than 50,000 today. (AP Photo / Charlie Riedel) In addition to the weather community, many other industries that are not directly related to weather are also turning to weather norms. “We have a lot of people who rely on what’s going on in our time and our climate to do their day-to-day work,” said Woods Placky. “Farmers need to know when to plant crops and what types of crops. Cities need to know how to plan for snow removal and how much snow to expect. Beyond farmers and city planners, energy and utility companies need to understand standards in order to better prepare for different seasonal demands, construction companies need to know how often it will rain in a certain amount of time for a period of time. a contracted construction project and clothing and accessories retailers. need to understand how the weather will change in different regions to determine what to sell and when. (National Centers for Environmental Information) In addition to his functional goals, Woods Placky said the release of normal data each decade serves as a “time to pause and think and really take a look at the big picture. “. CLICK HERE FOR FREE ACCUWEATHER APP Michael Palecki, physicist for NOAA’s National Environmental Information Centers (NCEI) and NOAA Climate Normals 1991-2020 project manager, said there were a few surprises in this year’s data, especially with temperature normals changed in parts of the US “When we started the process, we thought the new norm for 1991 to 2020 would be warmer everywhere than the 1981 normal to 2010, but that’s actually not the case, ”Palecki said. (National Centers for Environmental Information) In fact, Palecki said the north-central United States, mostly northwest of Chicago, was actually cooler in this decade’s data set than it was. ‘was from the previous decade, especially in Dakota, Minnesota, and Montana. “The whole world is not going to heat exactly the same amount,” Palecki said. “It will vary depending on atmospheric circulation and changes in ocean circulation.” Other areas of the northern United States also experience cooler normals at different times of the year, such as April, compared to previous decades. (National Environmental Information Centers) According to the NCEI, April is the most “dynamic” base month, the base months being those in the middle of a season (January, April, July and October). Changes in temperature normals were up to 2 degrees Fahrenheit lower in the Dakotas in April compared to the previous decade, while areas west and east of the Mississippi Valley continued to experience a warming tendency. In all seasons, the NCEI reports that two-thirds of the country is now wetter than before and most of it is warmer. In January, the main winter month, most countries experienced an increase in temperatures of 0.5 to 1.5 degrees Fahrenheit. In July, the main month of the summer season, all of West, Texas and parts of the Rocky Mountains saw temperature increases of up to 2 degrees. Ken, left, and Ana Seastrom sit on the beach on Tuesday, April 27, 2021 in San Diego. (AP Photo / Gregory Bull) “The trends we are seeing are about as expected for greenhouse gas-induced climate change,” Palecki said. “I didn’t see any surprises in that sense.” The transportation sector, according to Woods Placky, is currently the biggest source of emissions, and large-scale electric transportation could be a solution to reducing these emissions in the country. The energy sector is the second largest source of emissions in the United States, and things like wind and solar power can also help reduce those emissions, Woods Placky said. “On an individual level, there is a lot we can do to learn and talk to others about what’s going on and learn how we can take these bigger solutions into account,” said Woods Placky. “On a large scale, we need some system changes,” she said. Reporting by Emmy Victor Keep checking back on and tune in to the AccuWeather Network on DirecTV, Frontier, Spectrum, FuboTV, Philo and Verizon Fios.

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