Only 2017 recorded the initial fall in temperatures which had been experienced continuously from 2014, spanning through 2015 and 2016. Carlo Buontempo, director of C3S at ECMWF, said: “In 2020, there was an unusually rapid decline in Arctic sea ice extent during June and July, in the same region where above average temperatures were recorded, preconditioning the sea ice minimum to be particularly low this year. All maps, graphics, flags, photos and original descriptions © 2020, Venus: the Hottest Planet in the Solar System. *June 2020 NASA data is exactly tied for 1st with 2019. The El Nino phenomenon also contributed to the warming trend in global temperatures as seen in 1997 and 1998, and 2015, three individual years when the El Nino was the strongest which marked the largest margins that broke the annual temperature records of previous years. The first nine months of 2020 were remarkably warm. Average temperatures for the five-year (2015-2019) and ten-year (2010-2019) periods were the highest on record. Antarctic sea ice extent was close to the long-term average over the first 10 months of 2020. Current temperature in-line with model projections. By Rolando Y. Wee on April 25 2017 in Environment. All rights reserved. In 2012, the anomaly was 0.62° Celsius. However, these are typically drawn from thermometers exposed to the sun, which leads to readings higher than the actual air temperature, as was the case with the 145F (63C) reported from Kuwait in 2019. The remaining 16% comes from other factors including carbon monoxide, black carbon and halocarbons, such as CFCs. The figure below, which shows a range of ENSO forecast models produced by different scientific groups, with the average for each type of models shown by thick red, blue and green lines. Carbon Brief has analysed records from six different research groups that report global surface temperature records: NASA; NOAA; Met Office Hadley Centre/UEA; Berkeley Earth; Cowtan and Way; and Copernicus/ECMWF. Interactive: What is the climate impact of eating meat and dairy? According to weather records researcher Maximiliano Herrera, the previous global record high for August is 127.9F (53.3C), recorded in Mitribah, Kuwait, in 2011. Last modified on Thu 20 Aug 2020 19.56 EDT. The unusually high temperatures this year are “in part due to … Human emissions of greenhouse gases have increased atmospheric concentrations of CO2, methane and nitrous oxide to their highest levels in at least a few million years – if not longer. It is the highest recorded for … Questions swirl around those early 20th century values, though. Death Valley’s forbidding landscape registered a preliminary high temperature of 129.9F on 16 August. The results are shown in the figure below. The year 2015 was the warmest ever, since 1880, with a temperature anomaly of 0.90° Celsius. Note that Hadley, Berkeley, and Cowtan and Way to back to 1850, NASA and NOAA go back to 1880, and Copernicus/ECMWF is only available since 1979. Thus, there is an indication that factors influencing the rise in temperatures may not have been there many years ago. The summer minimum – which typically occurs in late September – was the second lowest on record. While predicting the course of La Niña and El Niño events is challenging, it does make it likely that 2021 will be at least modestly cooler than 2020. If Sunday’s high at Death Valley is confirmed, it will be the planet’s highest temperature in almost a century and its third-highest on record, according to the World Meteorological Organization (WMO). Similarly, both sea ice extent and volume are clearly declining over time. The years 2004 and 2011 were also tied with a temperature anomaly of 0.57° Celsius. Annual temperatures between 1979 and 2019 are shown in black for each record, while the likely range (95% confidence interval) of the 2020 annual temperature based on the first six months of the year is shown by the red bar (see methodological note at the end for details). It shows the temperature of the year-to-date for each month of the year, from January through to the full annual average. Even for heat-favored landscapes such as Death Valley, it is remarkable for temperatures to inch into such territory so late in the summer, when the sun is considerably lower in the sky than at the summer solstice in late June. Then a tie in 2003, 2006, and 2007 at 0.61° Celsius anomaly. Climate models provide physics-based estimates of future warming given different assumptions about future emissions, greenhouse gas concentrations and other climate-influencing factors.

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