Climate graph for the week: When temperature records fall

The appointment of the United Nations from The past decade is the hottest ever Underlined by recent heatwaves, more than 40 percent of Europe’s maximum temperatures have fallen in the period since 2012.

It is clear to scientists that climate change will lead to an increase in the frequency and intensity of extreme weather events, with climate change Historic United Nations Report 270 scientists from 67 countries signed up earlier this year and concluded that the risks associated with even low levels of global warming are greater than previously thought.

The planet has already warmed by at least 1.1°C since pre-industrial times due to human activity, and is expected to continue warming for some time even if greenhouse gas emissions are quickly curbed.

Of the 47 national hikes ever documented in Europe, 21 have occurred in the years since 2012, according to a Financial Times analysis, including new records for England, Scotland, Wales and Northern Ireland.

The continent’s highest recorded temperature was 48.8 degrees Celsius in Syracuse, Italy, in August 2021. The only other countries in the block to hit 48 degrees Celsius are Greece and Spain, according to the data. assembly and production By climate scientist and weather historian Maximiliano Herrera.

Jonathan Porter, chief meteorologist at US commercial forecasting firm AccuWeather, said the European heat wave in July “will go down in the record books as a truly historic event – one of the most intense and most impactful in Europe”.

Animated map showing the heat wave in July 2022

Stephen Belcher, chief scientist at the UK Met Office, said the UK record of 40.3 degrees Celsius reached last week was remarkable for two reasons. The first is that the record was broken by a whole 1.5 degrees Celsius, whereas it had previously been broken by fractions of a degree.

Second, the very high temperatures experienced by a large area: “That was a surprise . . . to have such a large area to break records,” he told the BBC. Without climate change, Belcher said, temperatures above 40 degrees Celsius would have been “virtually impossible”.

With wildfires raging in parts of France, Spain and Portugal, Copernicus, the European Union’s Earth Watch programme, said large parts of Western Europe still faced a “extreme” and “extremely severe” fire risk.

Copernicus said the total estimated carbon emissions from fires in Spain alone during June and July were the highest in the period recorded since data collection began in 2003.

Globally, it was last year Fifth hottest recordAccording to Copernicus, the first six months of 2022 ranked sixth in the period from January to June, according to the US National Oceanic and Atmospheric Administration.

Historical temperature records remain controversial, however, and are under scrutiny by the modern meteorological community. Concerns about hardware, location, and observer reliability are among the methodological issues mentioned by experts reviewing the information.

The oldest temperature record in Europe kept by Ireland at 33.3°C, was documented at Kilkenny Castle in 1887, and climatologists have questioned it, but the National Weather Service has stuck with it. That would put a file The highest level last week at 33 degrees Celsius Ireland’s second highest recorded temperature.

Although some pre-industrial records are called into question, generally accepted national records in the last century reveal a clear pattern of climate change.

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