Tag: Global Warming

“PictureWhat” ??? Super-Human Poison Ivy. What’s Going On?

Sep 20, 2023

By MIKE MAGEE

Connecticut loves its’ trees. And no town in Connecticut loves its’ trees more than West Hartford, CT. The town borders include an elaborate interconnected reservoir system that does double duty as a focal point for a wide range of nature paths for walkers, runners and cyclists.

While walking one path yesterday, I came a tree with the healthiest upward advancing vine I had ever seen. My “PictureThis” app took no time to identify the plant. To my surprise, it was Toxicodendron radicans, known commonly as Poison Ivy.

The description didn’t pull punches. It read, “In pop culture, poison ivy is a symbol of an obnoxious weed because, despite its unthreatening looks, it gives a highly unpleasant contact rash to the unfortunate person who touches it.” And even that doesn’t quite capture the plants negative notoriety.

Its’ pain and itch inducing chemical oil covers every inch of the plant, and is toxic to 80% of humans. It was discovered by Japanese chemist Rikō Majima in the lacquer tree and named urushiol (Japanese for lacquer) in 1922. It is a derivative of catechol, an organic compound with the molecular formula C₆H₆O₂.

But the giant vine this week was nothing like the creeping little three leaf plant most children have be taught to avoid. This was a giant – a very different aggressor worth investigating. Its leaves were impossibly large and its vine straight and thick, and its vitality unhampered by a need to support elaborate roots or bark.

Others have noticed it too including “Pesky Pete” who has made a good living removing the invader from properties in Massachusetts and southern New Hampshire. And recently business has been booming. This is because the plant, which up to this year has never appeared in the region before May 10th, suddenly appeared this year on April 23rd.

This was no surprise to Bill Schlesinger, resident of Maine and Durham, NC. Officially, he is “William H. Schlesinger … one of the nation’s leading ecologists and earth scientists …a member of the National Academy of Sciences, …has served as dean of the Nicholas School of the Environment at Duke…”

Turns out Bill was in the lead on a six year project termed the “DukeUniversity Free-Air CO2 Enrichment Experiment” between 2000 and 2006 when the results were published. They had been following tree declines in the Duke Forest where predatory vines had played a major role. They decided to encircle and isolate six giant forest plots and pump them full of CO2, and then catalogue the effects.

Their 2006 publication revealed that:

CO2 enrichment increased T. radicans photosynthesis by 77%
Increased the efficiency of plant water usage by 51%
Stimulated the growth of poison ivy during the five growing seasons ambient plants
Annual growth increase of 149% in elevated CO2 compared to ambient plants.
Notably larger than the 31% average increase in biomass observed for woody plants

Poison Ivy was the fastest grower of them all in the experimental CO2 forests. Bill’s collaborator, Jacqueline E. Mohan, carried the work further as head of the Harvard Forest project in Massachusetts. They reported out results, not on CO2 soil, but warmed soil. They heated the upper layer of soil by 9 degrees. Her response to the findings was surprisingly down-to-earth. She said, “My heavens to Betsy, it’s taking off. Poison ivy takes off more than any tree species, more than any shrub species.”

Mohan and coworkers made it clear at the time that this was not great news for 8 out of 10 Americans who are sensitive to poison ivy. Not only did global warming and carbon footprints accelerate growth in the plant by 70% in its leaf size and biomass, but additional experiments revealed that these environmental enablers increased the amount of urushiol in the plant

As Duke was building those first towers to isolate their experimental forests in 2000, the International Geosphere-Biosphere Program was holding its annual meeting in Mexico. A Working Group subsequently focused on defining planetary boundaries (PB) that would assure both planetary and human health.

Nine years later, the group published “A Safe Operating Space For Humanity” in Nature. In it they proposed nine “planetary boundaries” to gauge “the continued development of human societies and the maintenance of the Earth system(ES) in a resilient and accommodating state.” In their view, measuring and ongoing monitoring of these boundaries would provide “a science-based analysis of the risk of human perturbations” that might “destabilize the Earth’s Systems (ES) on a planetary scale.” The work was updated in 2015.

The first Planetary Boundary listed was Global Warming with two measures, atmospheric CO2 and air and water temperature. As for human perturbation, as the picture above well illustrates, you can add super-human poison ivy to the list of unintended consequences.

Mike Magee MD is a Medical Historian and regular THCB contributor. He is the author of CODE BLUE: Inside the Medical-Industrial Complex (Grove/2020)

Lash of St. Francis

Aug 21, 2023

BY MIKE MAGEE

On September 25, 1939, Southern California woke with fear of The Lash of St. Francis or El Cordonazo on the horizon. The term refers to northwestern tracking, cyclone-laden storms that can hit the western shores of Mexico and California most commonly around the Feast of Saint Francis, on October 4th. This one made landfall at San Pedro, California.

The calamity that day in Southern California was a rare event, the only one of its kind in the 20th century. The last one to hit, prior to this was in San Diego on October 2,1858. The Earth’s rotation normally assures that such cyclones in this region move from east to west, and out to sea. But the 1939 storm was the exception, and the big problem was the rain, some 5 1/2 inches over a 24-hour period (though the town of Indio, in the Coachella Valley of Southern California’s Colorado Desert region experienced 7 inches and buried the valley in 4 feet of water. Forty-five died on land, and 48 perished at sea. One positive – the storm marked the end of a 1-week heat wave where Los Angeles reached 107 F degrees and claimed 100 lives.

History repeated itself 84 years later this weekend, with a memorable “Lash” on the backend of a summer heat wave. The human, economic, and ecological tolls remain to be calculated. But one thing is for certain, global warming has arrived, and with it the production of both heat and water and a new, all too familiar meteorological phenomenon, the “atmospheric river.”

NOAA defines “atmospheric river” this way: “Atmospheric rivers are relatively long, narrow regions in the atmosphere – like rivers in the sky – that transport most of the water vapor outside of the tropics. While atmospheric rivers can vary greatly in size and strength, the average atmospheric river carries an amount of water vapor roughly equivalent to the average flow of water at the mouth of the Mississippi River. Exceptionally strong atmospheric rivers can transport up to 15 times that amount. When the atmospheric rivers make landfall, they often release this water vapor in the form of rain or snow.”

To be clear, these drenching above-ground collections of water are generally a blessing because they provide most of the much-needed precipitation to California’s dry areas and replenish the water cycles in the region. But as the Earth has warmed, they more frequently represent “too much of a good thing”, and are now responsible for 90% of California’s flood damage.

Global Warming and Disease

Jun 15, 2022

BY MIKE MAGEE

A study eight years ago, published in Nature, was titled “Study revives bird origin for 1918 flu pandemic.” The study, which analyzed more than 80,000 gene sequences from flu viruses from humans., birds, horses, pigs, and bats, concluded the 1918 pandemic disaster “probably sprang from North American domestic and wild birds, not from the mixing of human and swine viruses.”

The search for origin in pandemics is not simply an esoteric academic exercise. It is practical, pragmatic, and hopefully preventive. The origin of our very own pandemic, now in its third year and claiming more than 1 million American lives, remains up in the air. Whether occurring “naturally” from an animal reservoir, or the progeny of an experimental lab engaged in U.S. funded “gain-of-function” research, we may never know. What we do know is that viruses move at the speed of light, or more accurately, at the speed of birds.

The IPCC Confirms Life As We Know It Will Soon Cease to Exist

Nov 6, 2018• 7

By DAVID INTROCASO PhD

THCB readers may recall last year in early June when the Trump administration announced it would withdraw from the 2015 Paris climate accord and earlier this January when the World Economic Forum met to discuss its global risk report that included the chapter, “Our Planet on the Brink,” I discussed in part (here and here) the health care industry’s indifference to global warming (See also my related 3 Quarks Daily essay.) Now comes the United Nation’s Intergovernmental Panel on Climate and Change’s (IPCC’s ) latest report. Once again overwhelming scientific evidence that confirms life as we know it on this planet will soon cease to exist is received with apathetic insouciance.

Created in 1988 the IPCC is considered the world’s definitive scientific body on climate change and co-winner with Al Gore of the 2007 Nobel Peace Prize, finalized in early October its report, “Global Warming of 1.5°C.” The 2015 Paris accord called for the report. It was prepared by nearly one hundred scientists who analyzed thousands of the most recent scientific evidence. The report’s summary was accepted by over 180 countries including the American and Saudi Arabia delegation during the IPCC’s meeting recently concluded in South Korea.

What is newsworthy about the IPCC report is its conclusion that keeping or holding temperature increases below 2°C, the goal of the Paris agreement, would not avoid the catastrophic effects of global warming. At 1.5°C life on this planet would suffer serious or dire harm, at 2°C catastrophic harm. Specifically, the report compared the impact between a 1.5°C (2.7°F) increase in temperature with a 2°C (3.6°F) increase (The earth has already warmed by 1°C since the pre-industrial era). Among numerous other findings, should temperatures increase to 1.5°C, the report found of 105,000 species studied, four percent of vertebrates (that include us), eight percent of plants and six percent of insects would lose half of their climatically-determined geographic range. At 2°C, the percents double to triple. Global crop yields will decline significantly. At 1.5°C we will lose 70 to 90 percent of coral reefs, at 2°C there will be a 99 percent loss. At 1.5°C Marine fishery losses or the global annual catch loss would be 1.5 million tons, at 2°C they double.