Sweltering heat is blanketing much of the planet, and one unofficial analysis says the past seven days have been the hottest week on record, the latest grim milestone in a series of climate-change-driven extremes.
On Thursday, the National Oceanic and Atmospheric Administration distanced itself from the designation, compiled by the University of Maine’s Climate Reanalyzer, which uses satellite data and computer simulations to measure the world’s condition. That metric showed that Earth’s average temperature on Wednesday remained at an unofficial record high, 62.9 degrees Fahrenheit (17.18 degrees Celsius), set the day before.
And for the seven-day period ending Wednesday, the daily average temperature was .08 degrees Fahrenheit (.04 degrees Celsius) higher than any week in 44 years of record-keeping, according to Climate Reanalyzer data.
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Though the figures are unofficial, many scientists agree they indicate climate change is reaching uncharted territory. And the White House said the data show the need for legislative action.
“The alarming extreme weather events impacting millions of Americans underscore the urgency of President Biden’s climate agenda and the absurdity of continued efforts by Republican lawmakers to block and repeal it,” spokesman Abdullah Hasan said.
NOAA, whose figures are considered the gold standard in climate data, said in a statement Thursday that it cannot validate the unofficial numbers. It noted that the reanalyzer uses model output data, which it called “not suitable” as substitutes for actual temperatures and climate records. The agency monitors global temperatures and records on a monthly and an annual basis, not daily.
“We recognize that we are in a warm period due to climate change, and combined with El Nino and hot summer conditions, we’re seeing record warm surface temperatures being recorded at many locations across the globe,” the statement said.
U.N. Secretary-General Antonio Guterres said the latest numbers help prove “that climate change is out of control.”
“If we persist in delaying key measures that are needed, I think we are moving into a catastrophic situation, as the last two records in temperature demonstrates,” he said.
More frequent and more intense heat waves are disrupting life around the world and causing life-threatening temperatures.
In Timbuktu, Mali — at the gateway to the Sahara Desert — 50-year-old Fatoumata Arby said this kind of heat is new. “Usually, at night it’s a bit cool even during the hot season. But this year, even at night, it’s been hot — I’ve never seen anything like it,” said Arby, who rarely leaves her hometown. “I’ve been having heart palpitations because of the heat. I’m starting to think seriously that I’m going to leave Timbuktu.”
Last week, Egypt experienced one of its many summer heatwaves, with temperatures soaring above 100 degrees Fahrenheit (37.7 degrees Celsius), according to the country’s national weather forecaster. To combat heat and humidity, children on Thursday frolicked in the Nile River while pedestrians hunted the shade.
People are also feeling the effects in Nouakchot, Mauritania’s capital city, on the shores of the Atlantic. For Abdallahi Sy, a 56-year-old farmer who works in the market gardens, environmental changes have reduced his already-meager income.
“I have a small shelter built from wooden poles and scraps of cloth. I take refuge there when the heat becomes unbearable,” said Sy, who tries to work from 6 a.m. to 11 a.m., or noon at the latest. “After that ... I practically can’t move because of the heat.” Customers don’t venture out until 5 p.m. or later to buy fertilizer and vegetables.
He cited a scarcity of water and quality feed for livestock as causes for illness and even miscarriage among animals: “It is clear that we are facing profound changes in our environment. The earth is becoming less fertile and less generous.”
Overall, one of the largest contributors to this week’s heat records is an exceptionally mild winter in the Antarctic. Parts of the continent and nearby ocean were 18-36 degrees Fahrenheit (10-20 degrees Celsius) higher than averages from 1979 to 2000.
“Temperatures have been unusual over the ocean and especially around the Antarctic this week, because wind fronts over the Southern Ocean are strong pushing warm air deeper south,” said Raghu Murtugudde, professor of atmospheric, oceanic and earth system science at the University of Maryland and visiting faculty at the Indian Institute of Technology, Bombay.
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