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WMO: Earth Witnesses Record Breaking Temperature in June 2019

Nullis says the heat wave will affect millions of people from the Great Plains to the East Coast. She says temperatures of 38 to 43 degrees Celsius are expected

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June 2019 Blended Land and Sea Surface Temperature Percentiles. (NOAA) (VOA)

The World Meteorological Organization (WMO) says the world’s leading weather stations confirm the Earth has just had the warmest June on record, since record keeping began in 1880.

Meteorologists say nine of the 10 warmest Junes on record have occurred since 2010.  The 10th record-holder was in June 1998.  WMO says last month’s record-breaking temperatures were felt across the globe.  It says no land or ocean areas have recorded cold temperatures in June.

But WMO spokeswoman Claire Nullis says temperatures are only part of the story. “June saw the second-smallest Arctic sea ice extent for the month on record and the lowest Antarctic sea ice extent,” she said. “… There is a lot of concern this week about fires in Greenland as part of the unusual spike in Arctic blazes.”

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Scientists say heatwaves such as the one Earth is currently experiencing are consistent with climate scenarios. Pixabay

Nullis notes Alert, Canada, the northernmost settlement on Earth, reached a high of 21 degrees Celsius (70 degrees Fahrenheit) for the first time in history a few days ago.  And now, she says the U.S. National Weather Service is issuing warnings about dangerous heat and humidity through this weekend in two-thirds of the United States.

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Nullis says the heat wave will affect millions of people from the Great Plains to the East Coast.  She says temperatures of 38 to 43 degrees Celsius are expected. “Twenty to 30 record high temperatures are expected and no relief at night is expected,” she said. “Again, the National Weather Service is predicting that about 123 minimum overnight temperature records may be tied or broken.”

Scientists say heatwaves such as the one Earth is currently experiencing are consistent with climate scenarios. They predict more frequent, drawn out and intense heat events as greenhouse gas concentrations lead to a rise in global temperatures. (VOA)

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Earth’s Rapid warming in Late 20th Century Far More Widespread than Any Temperature Variations

Published in the journal Nature, it found that previous major climate events were confined to certain areas

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In this image made from video, climate change protesters block the car containing Britain's Conservative Party leader Boris Johnson on his way to meet the Queen in London, July 24, 2019. VOA

Earth’s rapid warming in the late 20th century was far more widespread than any temperature variations during the previous 2,000 years, according to a study published on Wednesday that shows how profoundly humans have altered the climate.

The study crunched data covering two millennia from almost 700 sources ranging from tree rings and coral to sediments and ice cores.

Published in the journal Nature, it found that previous major climate events were confined to certain areas, and not global phenomena as scientists had previously assumed, said one of its co-authors, Columbia University climate scientist Nathan Steiger.

“The main takeaway is that climate variability in the contemporary period is very different than what’s happened in the past 2,000 years,” he said.

Earth, Warming, Temperature
Earth’s rapid warming in the late 20th century was far more widespread than any temperature variations during the previous 2,000 years. Pixabay

Natural phenomenon?

Some people who question whether burning coal, oil and gas is causing global warming point to evidence of prolonged shifts in climatic conditions in past centuries to argue that today’s higher temperatures may also be a natural phenomenon.

Previous shifts include the “Medieval Climate Anomaly” from 800-1200 AD when temperatures rose, and the “Little Ice Age” from around the 1300s to the 1850s when Britons skated on the frozen River Thames.

But the study, which measured readings from zero to 2,000 AD, showed that some of the coldest temperatures during that period were more localized, occurring in parts of the Pacific in the 15th century and in northwestern Europe and southeastern North America in the 17th.

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By contrast, the researchers found that the rapid rise in average temperatures in the closing decades of the last century affected more than 98% of the planet.

“This is definitely further evidence that fossil fuels and anthropogenic activity actually has fundamentally changed the climate,” Steiger told Reuters.

Volcanic activity 

Mark Maslin, professor of climatology, at University College London (UCL) said the paper should “finally stop climate change deniers claiming that the recent observed coherent global warming is part of a natural … cycle.”

Earth, Warming, Temperature
The study crunched data covering two millennia from almost 700 sources ranging from tree rings and coral to sediments and ice cores. Pixabay

A parallel study published in Nature Geoscience found that pre-industrial fluctuations in temperature were primarily driven by volcanic activity.

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The studies were released less than a week after temperature data from the U.S. National Oceanic and Atmospheric Administration showed last month was the hottest June globally in 140 years. (VOA)