July hottest month on record

PARIS – July was the hottest month across the globe ever measured, and 2019 is on track to be one of the warmest years, according to data released Monday by the European Union’s Earth observation network.

Searing heatwaves saw records tumble across Europe last month, with unusually high temperatures around the Arctic Circle as well.

Wildfires unprecedented in scope and intensity burned in Siberia and Alaska, releasing more than 100 million tons of CO2 into the atmosphere across June and July.

At the same time, Greenland’s ice sheet shed massive amounts of melted ice daily, totalling nearly 200 billion tons in July alone, according to the Danish Meteorological Institute.

“While July is usually the warmest month of the year for the globe, according to our data it also was the warmest month recorded globally, by a very small margin,” Jean-Noel Thepaut, head of the EU’s Copernicus Climate Change Service, said in a statement.

“With continued greenhouse gas emissions and the resulting impact on global temperatures, records will continue to be broken in the future.”

Compared with the 1981 to 2010 period, average July temperatures this year rose highest in Alaska, Greenland, Siberia, central Asia, Iran and large swathes of Antarctica. Africa and Australia were also well above average.

Globally, July 2019 was marginally warmer – by 0.04 degrees Celsius – than the previous record-hot month, July 2016.

The new record is all the more notable because the 2016 record followed a strong El Niño, which boosts average global temperates beyond the impact of global warming alone.

El Niños are naturally occurring weather events triggered by periodic warming – every three to seven years – in the eastern Pacific Ocean.

“July has rewritten climate history, with dozens of new temperature records at local, national and global levels,” World Meteorological Organization (WMO) SecretaryGeneral Petteri Taalas said in a statement a few days ago.

Global warming, he added, was clearly to blame.

“This is not science fiction,” he said. “It is the reality of climate change.”

Every month so far in 2019 ranks among the four warmest on record for the month in question, with June being the hottest June measured, the Copernicus team said in a press release.

Accurate temperature records extend into the 19th century, starting around 1880.