The Daily Parker

Politics, Weather, Photography, and the Dog

Lunchtime must-reads

Just a few today:

That's all for this afternoon. Check back tomorrow to see if Israel has a government, if Saudi Arabia decides to take its $67 bn defense budget out for a spin, or if President Trump succeeds in putting homeless people in concentration camps.

It's hot and wet

Two articles on current consequences of climate change. First, the Post has a long-form description of how global temperature rise is lumpy, causing localized hot spots such as the one off the coast of Uruguay:

The mysterious blob covers 130,000 square miles of ocean, an area nearly twice as big as this small country. And it has been heating up extremely rapidly — by over 2 degrees Celsius — or 2C — over the past century, double the global average. At its center, it's grown even hotter, warming by as much as 3 degrees Celsius, according to one analysis.

The entire global ocean is warming, but some parts are changing much faster than others — and the hot spot off Uruguay is one of the fastest. It was first identified by scientists in 2012, but it is still poorly understood and has received virtually no public attention.

The South Atlantic blob is part of a global trend: Around the planet, enormous ocean currents are traveling to new locations. As these currents relocate, waters are growing warmer. Scientists have found similar hot spots along the western stretches of four other oceans — the North Atlantic, the North Pacific, the South Pacific, and the Indian.

Barring some dramatic event like a major volcanic eruption — which can cause temporary global cooling by spewing ash that blocks the sun — scientists expect this to continue and steadily worsen.

Climate change has also driven a policy shift in Canada:

Unlike the United States, which will repeatedly help pay for people to rebuild in place, Canada has responded to the escalating costs of climate change by limiting aid after disasters, and even telling people to leave their homes. It is an experiment that has exposed a complex mix of relief, anger and loss as entire neighborhoods are removed, house by house.

The real-world consequences of that philosophy are playing out in Gatineau, a city across the river from Ottawa that has been hit by two 100-year-floods since 2017. Residents here are waiting for officials to tell them if the damage from the latest flood, in April, exceeded 50 percent of the value of those homes. Those who get that notice will be offered some money and told to leave.

Canada doesn't have the constitutional protections for private property that we have in the US. But the approach works; they spend a lot less on clearances than on rebuilding, especially since they only need to clear once.

Afternoon articles

Just a few for my commute home:

  • New York Times reporter James Stewart interviewed Jeffrey Epstein on background a year ago, and it was weird.
  • The Post analyzes temperature records to find which parts of the US have warmed faster than others.
  • Chemist Caitlin Cornell may have discovered an important clue about the origin of life on Earth.
  • The site of the city's first Treasure Island store, just two blocks from where I lived in Lakeview from 1994-1996, might become an ugly apartment tower unless residents can block it.
  • Seva Safris digs into the differences (for good and ill) between JSON and XML.
  • Timothy Kreider delivers a stinging rant against gun-rights advocates: "The dead in El Paso and Dayton, whether they were shopping for back-to-school backpacks or just out having beers and hoping to get laid on a Saturday night, gave their lives so that you might continue to enjoy those freedoms."

I will now return to my crash-course in matrix maths.

Three unrelated articles

First, New York Times film critic A.O. Scott takes a second look at the 1999 film Election:

The movie has been persistently and egregiously misunderstood, and I count myself among the many admirers who got it wrong. Because somehow I didn’t remember — or didn’t see— what has been right there onscreen the whole time.

Which is that Mr. M is a monster — a distillation of human moral squalor with few equals in modern American cinema — and that Tracy Flick is the heroine who bravely, if imperfectly, resists his efforts to destroy her. She’s not Moby-Dick to his Ahab so much as Jean Valjean to his Inspector Javert.

Second, with Lake Michigan at record-high water levels for the second month in a row, several of Chicago's beaches have disappeared:

This year, the buoyant water has swallowed at least two Chicago beaches entirely and periodically closed others. It has swiped fishermen from piers, swimmers from beaches and submerged jetties, creating hazards for boaters. It has flooded heavily trafficked parts of lakefront bicycle and pedestrian pathways, leaving some stretches underwater and others crumbling.

But perhaps the most worrisome aspect of this summer is that these perils have occurred while the lake has remained mostly calm.

“Fall is the time of the year when wave conditions are historically the most severe on the Great Lakes,” said David Bucaro, outreach manager at the U.S. Army Corps of Engineers Chicago District. “We’re at a calmer period right now. There’s been some summer storms. But that October, November time period is when we really experience historically the most powerful coastal storms. That’s the conditions that we’re monitoring and are most concerned with.”

Should be fun this fall.

Next, writing for the LA Times, Rebecca Wexler points out that data-privacy laws giving law enforcement the power to snoop on electronic devices is deeply unfair to defendants for an unexpected reason:

Social media messages, photo metadata, Amazon Echo recordings, smart water meter data, and Fitbit readings have all been used in criminal cases. The new laws would limit how defendants can access this key evidence, making it difficult or impossible for defendants to show they acted in self-defense, or a witness is lying, or someone else is guilty of the crime.

The California Consumer Privacy Act, which was approved in 2018, allows law enforcement officers to obtain data from technology companies and prohibit those companies from immediately notifying the person they are investigating. Such delayed notice may be necessary to investigate someone who is dangerous or likely to destroy evidence or flee. But the law does not give defense investigators the same right to delay notification to witnesses or others — who might well pose a threat to the defendant — when they subpoena data from tech companies as part of the defense’s case.

I will now rejoin a long-running data analysis project, already in progress.

Lunchtime reading

Yep, one of these posts.

Back to coding...

Requiem for a glacier

Researchers from Rice University and residents of Iceland have put up a memorial to a glacier that disappeared in 2014:

The memorial is “a letter to the future.” It describes what we lost: the Okjokull glacier — and how we lost it: human-caused climate change. And yet it is hopeful, acknowledging “what is happening and what needs to be done.”

“Only you,” future visitor, “know if we did it.”

It’s a reminder of geologic times gone by, like a Mount Rushmore but for the natural landmarks we’ve lost. The plaque, dedicated to Iceland’s first glacier lost to climate change, will be installed next month in Borgarfjordur.

[A]ll of Iceland’s glaciers are projected to melt in the next two centuries. The Rice University researchers say they hope this small memorial helps create a path forward for thinking about climate change and its impact.

It was an ice thing to do as well.

Yes, the climate has changed before...just not like this

As our planet warms to global average temperatures not seen in over 125,000 years, a pair of long-range studies has concluded the unique way or climate is changing right now, as opposed to the rest of history:

“The familiar maxim that the climate is always changing is certainly true,” Scott St. George, a physical geographer at the University of Minnesota in Minneapolis, said in a written commentary about the studies. “But even when we push our perspective to the earliest days of the Roman Empire, we cannot discern any event that is remotely equivalent — either in degree or extent — to the warming over the last few decades.”

One of the studies, published in the journal Nature, shows that the Little Ice Age and other natural fluctuations affected only limited regions of the planet at a time, making modern warming the first and only planetwide warm period in the past two millennia. The other study, published in Nature Geoscience, shows that the rate of modern warming has far outpaced changes that occurred before the rise of the industrial era.

For the Nature Geoscience study, the researchers charted global temperature averages over time, and then compared the data to a set of climate simulations to figure out what might have driven the changes. Neukom and his colleagues found that the fastest warming in the last two millennia occurred during the second half of the 20th century.

The researchers also found that the main cause of temperature fluctuations changed over time. Prior to 1850, fluctuations were mainly linked to volcanic eruptions, which cooled the planet by spewing sun-blocking ash into the stratosphere; after 1850, greenhouse gas emissions took the wheel.

As if to underscore that, today London saw temperatures over 37°C while France and other parts of Europe set new all-time heat records, with a reading of 42.6°C in Paris today.

Europe goes to hell

As I mentioned this morning, the UK Met predicts that tomorrow—Boris Johnson's first full day as UK PM—will be the hottest day in recorded history for the country. Today, however, is already the hottest day in recorded history for the Netherlands and Belgium:

The Dutch meteorological service, KNMI, said the temperature reached 39.1°C at Gilze-Rijen airbase near the southern city of Tilburg on Wednesday afternoon, exceeding the previous high of 38.6°C set in August 1944.

In Belgium, the temperature in Kleine-Brogel hit 38.9°C, fractionally higher than the previous record of 38.8°C set in June 1947. Forecasters said temperatures could climb further on Wednesday and again on Thursday.

After several cities in France broke previous temperature records on Tuesday, including Bordeaux, which hit 41.2°C, the national weather service, Météo France, said Paris was likely to beat its all-time high of 40.4°C, set in July 1947, with 42°C on Thursday.

City records in Amsterdam and Brussels are also expected to fall. Cities are particularly vulnerable in heatwaves because of a phenomenon known as the urban heat island effect, in which concrete buildings and asphalt roads absorb heat during the day and emit it again at night, preventing the city from cooling.

Scientists have said such heatwaves are closely linked to the climate emergency and will be many times more likely over the coming decades.

Last month, the Potsdam Institute for Climate Impact Research said Europe’s five hottest summers since 1500 had all occurred in the 21st century – in 2018, 2010, 2003, 2016 and 2002.

And the band played on.

Sic transit gloria Brittania

Unelected former Prime Minister Theresa May tendered her resignation to the Queen a few minutes ago. Unelected incoming Prime Minister Boris Johnson is, at this moment, meeting with Her Majesty in hopes that she will invite him to form a new government.

May's last Prime Ministers Questions were at noon BST today:

I recommend just a few opinion pieces on Johnson out this morning:

Meanwhile, to underscore that the UK may have gone to hell today, the Met Office predicts that tomorrow may be the hottest day ever in the country. Ever.

Cooldown

For seven of the last 11 days Chicago has had highs above 32°C, maxing out yesterday afternoon at 35°C. Then around 4pm yesterday, a cold front dropped temperatures 10°C in an hour—along with 20 mm of rain.

It wasn't the worst summer weather Chicago has had in its history, but we're pretty sure it'll be more common in years to come.