Tag Archives: Sahara Desert

‘Godzilla dust cloud’ drifts over U.S. Southeast, raising health concerns

By Brendan O’Brien

(Reuters) – A massive plume of dust whipped up from the Sahara desert will hover over the U.S. Southeast this weekend, forecasters say, shrouding the region in a brown haze and raising more health concerns in states where the coronavirus crisis is worsening.

The 3,500-mile-long (5,600 km) cloud, dubbed the “Godzilla dust cloud,” traveled 5,000 miles (8,047 km) from North Africa before reaching the region stretching from Florida west into Texas and north into North Carolina through Arkansas, the National Weather Service (NWS) said.

“It’s a really dry layer of air that contains these very fine dust particulates. It occurs every summer,” said NWS meteorologist Patrick Blood. “Some of these plumes contain more particles, and right now we expecting a very large plume of dust in the Gulf Coast.”

This year, the dust is the most dense it has been in a half a century, several meteorologists told Reuters earlier this week as it crossed over the Caribbean.

The Saharan dust plume will hang over the region until the middle of next week, deteriorating the air quality in Texas, Florida and other states where the number of COVID-19 cases has recently spiked.

“There’s emerging evidence of potential interactions between air pollution and the risk of COVID, so at this stage we are concerned,” said Gregory Wellenius, an professor of environmental health at Boston University’s School of Public Health.

Air pollution can be especially detrimental for people who are at risk for or suffer from cardiovascular and respiratory illnesses, Wellenius added. Heart and lung problems heighten the risk of severe COVID-19.

The plume will create hazy skies and lower visibility. In the past, dust plumes from Africa have dumped a thin layer of dust onto vehicles in Houston, where air quality is always a concern, Blood said.

The dry air mass that carries the dust can suppress tropical storm and hurricane formation and can enhance and illuminate sunrises and sunsets, meteorologists said.

(Reporting by Brendan O’Brien in Chicago; Editing by Bill Berkrot)

Climate records tumble as Europe swelters in heatwave

A temperature indicator outside of a pharmacy indicates 42 degres Celsius (107.6 Fahrenheit) in Brussels, Belgium, July 25, 2019. REUTERS/Yves Herman

PARIS/LONDON (Reuters) – Soaring temperatures broke records in France, Britain and the Netherlands on Thursday as a heatwave gripped Europe for the second time in a month, in what scientists said were becoming more frequent events as the planet heats up.

Tourists shield themselves from the sun with umbrellas as temperatures reach new record highs in front of the Brandenburg Gate in Berlin, Germany, July 25, 2019. REUTERS/Fabrizio Bensch

Tourists shield themselves from the sun with umbrellas as temperatures reach new record highs in front of the Brandenburg Gate in Berlin, Germany, July 25, 2019. REUTERS/Fabrizio Bensch

As a cauldron of hot air from the Sahara desert moved across the continent, drawn northwards by high pressure, Paris recorded its highest temperature since records began and Britain reported its hottest weather for the month of July.

The unusual conditions brought a reduction in French and German nuclear power output, disrupted rail travel in parts of Britain and sent some Europeans, not habitual users of air conditioning in their homes, out to the shops in search of fans.

Health authorities issued warnings to the elderly, especially vulnerable to spikes in temperature.

“It’s very hot at the moment. I saw 42 degrees (Celsius) is forecast for today,” said 19-year-old French tourist Ombeline Massot in the capital’s Montmartre district, where visitors drank chilled bottles of water and fanned themselves.

Shortly after she spoke, the mercury touched 40.6 Celsius (105.08° Fahrenheit) in the French capital, above the previous Paris record of 40.4 C (104.72) recorded in July 1947.

In Britain, the temperature reached its highest for July, hitting 36.9 C (98.42 F), said the Met Office, the national weather service. The temperature, recorded at Heathrow, London, beat the previous July record of 36.7 C (98.06°F).

In the southern Netherlands, the temperature peaked at 40.4 Celsius (104.7 Fahrenheit), topping 40 degrees Celsius (104 Fahrenheit) for the first time on record, Dutch meteorology institute KNMI said. That broke the national record of 39.3 Celsius set the previous day. Before this week, the national heat record of 38.6 degrees had stood for 75 years.

The heat is expected to persist until Friday.

A boy plays with water in a fountain on a hot summer day in Brussels, Belgium, July 25, 2019. REUTERS/Yves Herman

A boy plays with water in a fountain on a hot summer day in Brussels, Belgium, July 25, 2019. REUTERS/Yves Herman

GLOBAL WARMING

Climate specialists said such heatwaves are becoming more frequent as a result of global warming from greenhouse gas emissions.

Britons were facing travel disruption, with trains being forced to slow down to prevent tracks buckling in the heat. Several train operators asked commuters not to travel or set off very early.

A Met Office study found that a heatwave like one that broke records last year was 30 times more likely to occur than in 1750 because of the high amount of carbon dioxide in the atmosphere. Since the pre-industrial period, the Earth’s surface temperature has risen by 1 degree Celsius.

“There is a 40-50% chance that this will be the warmest July on record. This heatwave is exactly in line with climate change predictions,” said Dr. Karsten Haustein at the Environmental Change Institute at the University of Oxford.

Peter Inness, Senior Research Fellow at the University of Reading, said: “The fact that so many recent years have had very high summer temperatures both globally and across Europe is very much in line with what we expect from man-made global warming.”

The heatwave in Britain is expected to come to an abrupt end on Friday with thunderstorms forecast for several parts of the country, the Met Office said.

Very high temperatures across Europe coupled with prolonged dry weather has reduced French nuclear power generation by around 5.2 gigawatts (GW) or 8%, French power grid operator RTE’s data showed.

Electricity output was curtailed at six reactors by 0840 GMT on Thursday, while two other reactors were offline, data showed. High water temperatures and sluggish flows limit the ability to use river water to cool reactors.

In Germany, PreussenElektra, the nuclear unit of utility E.ON, said it would take its Grohnde reactor offline on Friday due to high temperatures in the Weser river.

(Reporting by Nina Chestney in London, Richard Lough in Paris, Alexandra Regida in Brussels and Bart Meijer in Amsterdam; Editing by William Maclean and Peter Graff)