Winter heatwave in Andes is sign of things to come, scientists warn

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https://www.theguardian.com/environment/2023/aug/06/winter-heatwave-andes-sign-things-come-scientists-warn

Human-caused climate disruption and El Niño push temperature in mountains to 37C

Exceptional winter heat in the Andean mountains of South America has surged to 37C, prompting local scientists to warn the worst may be yet to come as human-caused climate disruption and El Niño cause havoc across the region.

The heatwave in the central Chilean Andes is melting the snow below 3,000 metres (9,840ft), which will have knock-on effects for people living in downstream valleys who depend on meltwater during the spring and summer.

Tuesday was probably the warmest winter day in northern Chile in 72 years, according to Raul Cordero, a climate scientist at the University of Groningen, who said the 37C recorded at the Vicuña Los Pimientos station in the Coquimbo region was caused by a combination of global heating, El Niño and easterly gusts, known by locals as Terral winds that bring hot, dry weather.

Dozens of meteorological monitoring stations at more than 1,000 metres altitude recorded temperatures above 35C in winter, according to the Extreme Temperatures Around The World blog.

https://www.theguardian.com/environment/2023/aug/06/winter-heatwave-andes-sign-things-come-scientists-warn

One of 2023’s most extreme heatwaves is happening in the middle of winter

Continue ReadingWinter heatwave in Andes is sign of things to come, scientists warn

‘Terrifying’: Scientists Raise Alarm Over Unprecedented Global Ocean Heat

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Greenpeace image, sign reads CHOOSE OCEANS, NOT OIL
Greenpeace image, sign reads CHOOSE OCEANS, NOT OIL

Original article by JULIA CONLEY republished from Common Dreams under Creative Commons (CC BY-NC-ND 3.0).

The global average ocean surface temperature is expected to rise even further in the coming months as El Niño strengthens.

Climate scientists on Friday said the rapidly rising temperature of the planet’s oceans is cause for major concern, particularly as policymakers in the top fossil fuel emissions-producing countries show no sign of ending planet-heating oil and gas extraction.

The European Union’s climate agency, Copernicus Climate Change Service, reported this week that the average daily global ocean surface temperature across the planet reached 20.96°C (69.7°F), breaking the record of 20.95°C that was previously set in 2016.

The record set in 2016 was reported during an El Niño event, a naturally occurring phenomenon which causes warm water to rise to the surface off the western coast of South America. The weather pattern was at its strongest when the high ocean temperature was recorded that year.

El Niño is forming this year as well, but has not yet reached its strongest point—suggesting new records for ocean heat will be set in the coming months and potentially wreak havoc in the world’s marine ecosystems.

Samantha Burgess, deputy director of Copernicus, told the BBC that March is typically when the oceans are at their hottest.

“The fact that we’ve seen the record now makes me nervous about how much warmer the ocean may get between now and next March,” she told the outlet.

The warming oceans are part of a feedback loop that’s developed as fossil fuel emissions have increasingly trapped heat in the atmosphere.

Rising levels of carbon dioxide in the atmosphere are warming the oceans, leaving them less able to absorb the emissions and contributing to intensifying weather patterns.

“Warmer sea surface temperatures lead to a warmer atmosphere and more evaporation, and both of these lead to more moisture in the atmosphere which can also lead to more intense rainfall events,” Burgess told “Today” on BBC Radio 4. “And warmer sea surface temperatures may also lead to more energy being available for hurricanes.”

The warming ocean could have cascading effects on the world’s ecosystems and economies, reducing fish stocks as marine species migrate to find cooler waters.

“We are seeing changes already in terms of species distributions, prevalence of harmful algae blooms popping up maybe where we would not necessarily expect them, and the species shifting from warmer southern locations up into the colder regions as well which is quite worrying,” Helen Findlay, a biological oceanographer at the Plymouth Marine Laboratory in the United Kingdom, toldThe Evening Standard.

“We are also seeing more species coming up from the south, things like European anchovy or recently examples of Mediterranean octopus coming up into our waters and that is having a knock-on impact for the fish that we catch, and consequences of economics,” she added.

Certain parts of the world’s oceans provoked particular alarm among scientists in recent days, with water off the coast of Florida hitting 38.44°C—over 101°F—last week.

The National Oceanic and Atmospheric Administration told the BBC that ocean temperatures in that area typically hover between 23°C and 31°C at this time of year.

Since scientists first began measuring ocean temperatures using satellites and research buoys about four decades ago, the global average sea surface temperature has gone up by roughly 0.6°C.

On social media, climate scientists urged news outlets to explicitly connect the rising ocean temperatures to fossil fuel companies and the policymakers who are enabling them to continue fueling the climate emergency—such as British Prime Minister Rishi Sunak, who announced more than 100 new oil and gas licenses in the North Sea this week.

The New York Times this week reported “terrifying Earth breakdown but barely [mentioned] the cause is the fossil fuel industry,” said National Aeronautics and Space Administration climate scientist Peter Kalmus.

“The more we burn fossil fuels, the more excess heat will be taken out by the oceans, which means the longer it will take to stabilize them and get them back to where they were,” Burgess told the BBC.

Original article by JULIA CONLEY republished from Common Dreams under Creative Commons (CC BY-NC-ND 3.0).

Continue Reading‘Terrifying’: Scientists Raise Alarm Over Unprecedented Global Ocean Heat

‘Ancient Heat Records Will Be Broken’: Southern Europe Braces for Unprecedented Temperatures

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Original article by JAKE JOHNSON republished from Common Dreams under Creative Commons (CC BY-NC-ND 3.0). 

“If the disasters we’re seeing this month aren’t enough to shake us out of that torpor, then the chances of our persevering for another hundred and twenty-five thousand years seem remote.”

Southern Europe faced dangerously high temperatures on Sunday amid a continent-wide heatwave that’s expected to get worse in the coming days, potentially shattering longstanding records as the climate crisis rages.

Reuters reported that a “new anticyclone dubbed Charon, who in Greek mythology was the ferryman of the dead, pushed into the region from north Africa on Sunday and could lift temperatures above 45°C (113°F) in parts of Italy early this week,” prompting Italian officials to issue heat advisories for more than a dozen cities on Sunday.

Meteo.it, Italy’s weather news service, said Sunday that the country must “prepare for a severe heat storm that, day after day, will blanket the whole country.”

“In some places,” the service added, “ancient heat records will be broken.”

The fastest-warming continent on the planet, Europe has been facing scorching heat over the past several weeks as scientists warn that the fossil fuel-driven climate crisis is making such heatwaves more likely and increasingly intense. Last summer was Europe’s hottest season on record, and extreme heat killed more than 61,000 people on the continent between late May to early September of 2022.

But the current heatwave appears on track to be even more severe than last summer’s.

As CNN reported Sunday, “Climate scientists at the European Space Agency (ESA) say temperatures could reach 48°C (118.4°F) on the islands of Sicily and Sardinia, ‘potentially the hottest temperatures ever recorded in Europe.'”

“The ESA warned that Europe’s heat wave has only just begun with Spain, France, Germany, and Poland expected to see extreme weather, just as the continent welcomes what is expected to be a record-breaking number of tourists coming for the first time since the Covid-19 pandemic,” the outlet added.

Giulio Betti, an Italian meteorologist and climate expert, told the BBC that “temperatures will reach a peak between 19 and 23 July—not only in Italy but also in Greece, Turkey, and the Balkans.”

“Several local heat records within these areas may well be broken during those days,” Betti added.

Europe’s intensifying heatwave comes in the context of globally high temperatures fueled by El Niño conditions—which the climate crisis has likely made worse and more frequent.

Large swaths of the U.S.Asia, and Africa have experienced sweltering temperatures and other extreme weather—including deadly flooding—in recent weeks, heightening the urgency of coordinated climate action at the upcoming COP28 conference in the United Arab Emirates.

“It was probably the Earth’s hottest week in history earlier this month, following the warmest June on record, and top scientists agree that the planet will get even hotter unless we phase out fossil fuels,” The Guardian‘s Dharna Noor wrote Sunday. “Yet leading energy companies are intent on pushing the world in the opposite direction, expanding fossil fuel production and insisting that there is no alternative. It is evidence that they are motivated not by record warming, but by record profits, experts say.”

In February, after reporting a record-shattering $28 billion in 2022 profits, the London-based oil giant BP announced that it was walking back its emission-reduction goals and planning to produce more fossil fuels than expected.

Shell, which posted $40 billion in profits last year, followed suit last month, ditching its plans to reduce oil production by up to 2% per year.

In a New Yorkercolumn on Sunday, author and climate advocate Bill McKibben noted that the BBC aired an interview with Shell CEO Wael Sawan on July 6, the day scientists believe may have been the hottest on record.

During the interview, Sawan claimed that cutting oil and gas production would be “dangerous and irresponsible,” drawing swift backlash.

McKibben noted that Sawan “told the BBC that, while there are not currently any plans, Shell wouldn’t rule out moving its headquarters from the United Kingdom to the United States, where oil companies get higher market prices for their shares.”

“This suggested to him that the U.S. is more supportive of oil and gas companies, and, as he has told investors, he wants to ‘reward our shareholders today and far into the future,'” McKibben added. “That is pretty much the definition of ‘business as usual,’ and it’s precisely what has generated this completely unprecedented heat. If the disasters we’re seeing this month aren’t enough to shake us out of that torpor, then the chances of our persevering for another hundred and twenty-five thousand years seem remote.”

Original article by JAKE JOHNSON republished from Common Dreams under Creative Commons (CC BY-NC-ND 3.0). 

Continue Reading‘Ancient Heat Records Will Be Broken’: Southern Europe Braces for Unprecedented Temperatures

Cerberus heatwave: Why is it so hot in Europe and how long will it last?

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https://www.euronews.com/green/2023/07/13/cerberus-heatwave-why-is-it-so-hot-in-europe-and-how-long-will-it-last

Why is it so hot in Europe?

Extreme temperatures have hit Europe this year as the world swelters through the El Niño weather pattern, and greenhouse gas emissions warm our climate.

But the latest highs have been made worse by an anticyclone dubbed ‘Cerberus’. This area of high pressure started in the Sahara before moving across northern Africa and into the Mediterranean.

The heatwave was named by the Italian Meteorological Society after the fiery-eyed, three-headed dog that guards the gates of the underworld in Greek mythology.

How hot will Europe get?

The Italian islands of Sardinia and Sicily could simmer in 48°C in the coming days, potentially reaching “the hottest temperatures ever recorded in Europe,” according to the European Space Agency (ESA).

In August 2021, Sicily hit 48.8°C – the current record.

Rome, Bologna and Florence are among the 10 Italian cities currently under red alert for extreme heat.

Spain’s weather service said thermometers could potentially hit 45°C southeastern areas of the Iberian Peninsula, which are also under an alert for extreme heat. The temperature of the ground in parts of the country has hit more than 60°C.

https://www.euronews.com/green/2023/07/13/cerberus-heatwave-why-is-it-so-hot-in-europe-and-how-long-will-it-last

Continue ReadingCerberus heatwave: Why is it so hot in Europe and how long will it last?

‘Uncharted territory’: UN declares first week of July world’s hottest ever recorded

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https://www.theguardian.com/environment/2023/jul/11/uncharted-territory-un-declares-first-week-of-july-worlds-hottest-ever-recorded

Extreme temperatures break records as scientists warn El Niño is set to get worse

The beginning of July was the hottest week on record for the planet as a whole, according to the World Meteorological Organization. This year had already seen the hottest June on record, the UN body said, driven by climate change and the early stages of an El Niño weather pattern.

It is the latest in a series of records halfway through a year that has seen a drought in Spain and fierce heatwaves in China as well as the US.

“The world just had the hottest week on record, according to preliminary data,” the WMO said in a statement, adding that temperatures were breaking records on land and in the oceans, with “potentially devastating impacts on ecosystems and the environment”.

“We are in uncharted territory and we can expect more records to fall as El Niño develops further and these impacts will extend into 2024,” said Christopher Hewitt, WMO director of climate services.

“This is worrying news for the planet.”

https://www.theguardian.com/environment/2023/jul/11/uncharted-territory-un-declares-first-week-of-july-worlds-hottest-ever-recorded

Continue Reading‘Uncharted territory’: UN declares first week of July world’s hottest ever recorded