Will This Be The Worst Allergy Season Ever?


From Marlene Cimons, Climate Nexus:

Marlene Cimons writes for Climate Nexus, a nonprofit that aims to tell the climate story in innovative ways that raise awareness of, dispel misinformation about, and showcase solutions to climate change and energy issues in the United States.  She contributed this article to LiveScience’s Expert Voices: Op-Ed Insights.

This spring could be the most miserable one ever for those of us with allergies, and we can blame it on climate change. 

People in the Northeast, in particular, will be among the hardest hit in the aftermath of Hurricane Sandy and this winter’s record-setting blizzard, both of which dumped massive amounts of precipitation over the region.

“[This] promises a robust allergy season,” said Leonard Bielory, an allergy and immunology specialist with the Rutgers Center for Environmental Prediction in New Jersey, a state which suffered widespread destruction from Sandy.

“The first airborne tree pollen has been measured in recent days, and while the count is still low, some allergy sufferers are showing comparatively severe symptoms,” he added. “I expect more tree pollen than ever to be released this spring, and the reaction to the early pollen to be unusually strong.”

The planet is getting warmer, and human behavior is responsible. The changing climate has brought early spring, late-ending fall, and large amounts of rain and snow.  All of that, combined with historically high levels of carbon dioxide in the air, nourishes the trees and plants that make pollen, and encourages more fungal growth, such as mold, and the release of spores.

We will be paying a wretched price in the coming months for the behavior fueling the explosion of pollen, which are the tiny reproductive cells found in trees, weeds, plants and grasses.  By all accounts, there will be more pollen this year than ever before.

“The trees are going to burst in the next week or two, and we will get a burst of pollen higher than in past years,” said Bielory, who predicts that pollen counts will increase by 30 percent by 2020 and, “in a perfect test-tube world, will double by 2040 because of climate change.” [Study: Pollen Counts To More Than Double By 2040]

Most trees release their pollen in the early spring, while grasses do so in late spring and early summer. Ragweed makes its pollen in the late summer and early fall.

And pollen production is only part of the impact that global warming is going to have on allergies and asthma — and our health overall.

In areas of the country experiencing prolonged heat and drought, dust will worsen air pollution, exacerbating asthma and other respiratory diseases. In other regions, climate change will affect the insect population — their stings and bites can provoke fatal allergic reactions in sensitive individuals — as well as the proliferation of such vines as poison ivy. Poison ivy thrives with increased carbon dioxide, and as a result, now makes a far more potent urushiol — the oil that causes poison-ivy-triggered rashes — than in the past. [8 Ways Global Warming Is Already Changing the World]

Current evidence also suggests that climate change will increase the concentration of ground-level ozone, particularly in Northeastern, Midwestern and Western cities, causing an increase in respiratory diseases.

In short, if you have allergies or asthma, climate change is going to make you a lot sicker now and in the coming years.

Allergic diseases are the sixth leading cause of chronic disease in the United States, with an annual cost of $18 billion, according to the federal Centers for Disease Control and Prevention. More than 50 million Americans suffer from allergies annually.

Asthma afflicts about 20 million Americans, and is rising around the world, according to the CDC. Moreover, some public health experts regard the global increase of asthma as an early health effect of climate change, and a harbinger of more health dangers to come.

In fact, one study published in the Journal of Allergy and Clinical Immunology called climate change “potentially the largest global threat to human health ever encountered,” predicting more injury, disease and death from natural disasters, heat waves, infections and widespread malnutrition, as well as more allergic and air-pollution illnesses and death.

If you are lucky enough to be free from allergies, don’t make the mistake of dismissing them as nothing more than a minor annoyance. Allergies can have a serious impact on the quality of life, and in some circumstances — a bee sting, for example, or if they trigger an asthma attack — they can kill.

“This is not just a matter of having a runny nose,” said Jeffrey Demain, director of the Allergy, Asthma and Immunology Center of Alaska.  “Allergies affect the ability to go to work and go to school, and they affect school and work performance. They interfere with playing sports, social opportunities, how well you sleep, your relationships and your overall general happiness.”

On average, someone with allergic disorders experiences a quality of life 35 percent less than the general population, Demain said. “It really is quite dramatic,” he said.

Allergies occur when the body’s immune system overreacts to a substance that generally doesn’t bother other people. The allergens can prompt sneezing, coughing, watery eyes and itching. In the years between 1970 and 2000, allergic rhinitis among Americans has risen from 10 percent to 30 percent, which correlates to similar increases in positive allergy skin-test results, according to Bielory.

Most experts believe the impact of climate change on allergic diseases will vary by region, depending on latitude, altitude, rainfall and storms, land-use patterns, urbanization, transportation and energy production. Drought, for example, will contribute to increasing air pollution, while heavy rain will wash the pollution away, but encourage the growth of mold.

Bielory and his colleagues, reporting in a 2011 study, showed that the ragweed-pollen season has become longer in northern areas of the country in recent years, and points to climate change as the reason this is happening.

“We drew a line from Texas to Canada,” he explained. “The pollen count duration remained the same in Texas, but changed as you moved north. Even though you are heading north to Canada, the pollen started earlier and ended later — and it should have been shortening. This was due to earlier springs and the later onset of fall. Frost wasn’t occurring as early as it used to, so ragweed was pollinating later.”

Pollen levels per plant are increasing as a result of escalating concentrations of carbon dioxide in the atmosphere, and the plants themselves are growing bigger, experts say.

“The increased pollen is probably a way for the plant to adapt,” said Demain, who also is an associate clinical professor at the University of Washington. “They become larger and produce much more pollen. More people are going to develop asthma and allergies, and it’s going to be severe.”

Stopping human activities that contribute to climate change might help future generations avoid these risks, but the rest of us — like the plants themselves — will have to adapt. We also can hope for a new medical breakthrough that will turn off the allergic response.

In the meantime, stay inside and keep your windows closed.

The views expressed are those of the author and do not necessarily reflect the views of the publisher.

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  • Wine Tasting Parties

    Winegrowers in France’s Champagne region and scientists have already seen changes in the past 25 years, a href=”http://www.nytimes.com/2011/11/17/business/energy-environment/winemakers-rising-to-climate-challenge.html?_r=1pagewanted=all” target=”_hplink”reported emThe New York Times/em/a last year. They have “noted major changes in their vineyards, including an increased sugar content in the grapes from which they make their wine, with a consequent decrease in acidity, and a harvest time that regularly comes two weeks earlier than it once did.”

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  • Home Sweet Home (For Kiribatians)

    Along with the Maldives and other island nations, Kiribati is also threatened by climate change. Earlier this year, the president’s cabinet endorsed a plan to spend about $9.6 million for 6,000 acres on Fiji’s main island, a href=”http://www.huffingtonpost.com/2012/03/09/kiribati-global-warming-fiji_n_1334228.html” target=”_hplink”reported AP/a.

    President Anote Tong told AP, “We would hope not to put everyone on one piece of land, but if it became absolutely necessary, yes, we could do it.” He added, “It wouldn’t be for me, personally, but would apply more to a younger generation. For them, moving won’t be a matter of choice. It’s basically going to be a matter of survival.”

  • Super Duper Fast Wi-Fi Connection

    A 2011 report from the U.K.’s Department for Environment, Food and Rural Affairs found that climate change could affect certain infrastructure, like wireless internet. a href=”http://www.guardian.co.uk/environment/2011/may/09/climate-change-wi-fi-connections” target=”_hplink”The emGuardian/em reports/a, “higher temperatures can reduce the range of wireless communications, rainstorms can impact the reliability of the signal, and drier summers and wetter winters may cause greater subsidence, damaging masts and underground cables,” according to secretary of state for the environment.

    The emGuardian/em notes, “The government acknowledges that the impact of climate change on telecommunications is not well understood, but the report raises a series of potential risks.”

  • The Great Smoky Mountains’ Smoke

    The Great Smoky Mountains have the most annual rainfall in the southeastern U.S., which mostly falls as a light, misty rain, a href=”http://www.huffingtonpost.com/2012/04/28/great-smoky-mountains-climate-change_n_1461482.html” target=”_hplink”explains OurAmazingPlanet/a.

    A study by a team from NASA’s Precipitation Measurement Missions found that “light rainfall is the dominant form of precipitation in the region, accounting for 50 to 60 percent of a year’s total, governing the regional water cycle.”

    a href=”http://www.huffingtonpost.com/2012/04/28/great-smoky-mountains-climate-change_n_1461482.html” target=”_hplink”OurAmazingPlanet/a notes:
    blockquoteThe results suggest the area may be more susceptible to climate change than thought; as temperatures rise, more of the fine droplets from light rain will evaporate in the air and fail to reach the ground. Lower elevations will have to contend with not only higher temperatures, but less cloud cover./blockquote

  • California Beach Bums

    Along the California coast, beach communities are finding that it may be impossible to stop coastal erosion as global sea levels rise.

    a href=”http://www.huffingtonpost.com/2012/06/02/beach-communities-moving-inward_n_1565122.html” target=”_hplink”According to AP/a, David Revell, a senior coastal scientist at a href=”http://www.pwa-ltd.com/” target=”_hplink”ESA PWA/a, acknowledged the relentless power of the sea, saying, “I like to think of it as getting out of the way gracefully.”

    A a href=”http://www.huffingtonpost.com/2012/06/22/west-coast-sea-level-rise_n_1619568.html” target=”_hplink”report released in June by the Natural Resources Defense Council/a found that West Coast ocean levels will rise several inches in the next few decades. Sea levels along the California coast are expected to be six inches higher by 2030 and three feet higher by the end of the century.

    Despite the risks, another recent NRDC study found that a href=”http://www.huffingtonpost.com/2012/04/08/california-climate-change-study_n_1409312.html” target=”_hplink”California is one of several states/a with the best plans to deal with the effects of climate change.

  • Repeats Of The Titanic

    2012 could be a record year for the extent of Arctic sea ice at its yearly summer minimum. Walt Meier, a research scientist at the U.S. National Snow and Ice Data Center, said that with recent satellite observations, “It definitely portends a low-ice year, whether it means it will go below 2007 (the record minimum in September), it is too early to tell,” a href=”http://www.huffingtonpost.com/2012/06/18/arctic-sea-ice-levels_n_1605441.html” target=”_hplink”reported LiveScience/a.

    As sea ice declines in the Arctic, countries are anticipating a a href=”http://www.huffingtonpost.com/2012/04/16/arctic-climate-change-military-activity_n_1427565.html” target=”_hplink”competition for control of shipping lanes and mineral extraction/a in the region.

    In Antarctica, research from the United States’ Palmer Station on the Antarctic Peninsula has found that “87 percent of the peninsula’s land-bound glaciers are in retreat,” a href=”http://www.huffingtonpost.com/2012/07/12/environmental-threats-antarctica_n_1669023.html” target=”_hplink”reported OurAmazingPlanet/a.

    Decreasing sea ice levels were also addressed in a href=”http://www.huffingtonpost.com/2012/07/18/shell-arctic-ready-hoax-greenpeace_n_1684222.html” target=”_hplink”a recent spoof of Shell’s plans to drill for oil in the Arctic this summer/a.

  • Crazy Sugar Highs

    Climate change has already impacted sugarcane production in Indonesia.

    In late 2011, the a href=”http://www.thejakartapost.com/news/2011/11/09/sugar-association-blames-climate-change-production-drop.html
    http://www.thejakartapost.com/news/2011/11/09/sugar-association-blames-climate-change-production-drop.html” target=”_hplink”chairman of the Indonesian Sugarcane Farmers Association said/a, “sugarcane production decreased by up to 30 percent in 2011 due to climate change that has occurred since 2009.”

  • Warning Joe: Coffee Extinct in The Future?

    Climate changes and insect invasions threaten the future supply of morning joe.

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