Pigweed - now growing as if on 'afterburners' with CO2 the fuel.
The article quoted a fellow with the American Academy of Allergy, Asthma and Immunology, in noting how "the allergy season is so weather driven, short term and long term". He also wasn't inhibited about implicating global warming-climate change, observing:
"In northern states where global warming is already having an effect, winter is shorter and spring might come earlier, which can lengthen the pollen season".
He went on to indicate that a "dream year" for allergy sufferers would be one in which there is a long winter and rain in the spring" given the rain "washes out tree pollen" and a longer winter delays the pollen season.
Alas, that trend is not in the cards, given global warming's pattern is for ever shorter winters ultimately ending in the first "year of no seasons" by 2040 and possibly as early as 2030. In such a nightmarish world, allergy sufferers would be bombarded year round and even rains would be of little help - amping up grasses and weeds that people now mainly endure in late summer - such as ragweed.
Five years ago one beheld in the The Wall Street Journal (June 4, p A16, 'Superweeds Trigger New Arms Race'; June 21, p. D1, 'Least Welcome Sign of Summer') the announcement of the arrival of "super weeds".
According to that account, "by the middle of this decade" (2015) "at least 40% of U.S. corn and soybean crops will harbor Roundup resistant super weeds". Roundup, and especially Monsanto's Roundup -ready seeds, have been amongst the biggest "success stories" in the domain of weed control, primarily because of its primary constituent - glyphosate- which is one of the least toxic around. As one farmer cited in the first article put it: If glyphosate isn't the safest herbicide, it's damned close".
At the time of the writing Roundup and generic competitors were used on nearly 4 times as many acres as any other herbicide, but true to evolutionary dictates and principles - the weeds had adapted, and new, hardier variants emerged resistant to the weedicides. Many scientists agree that enhanced CO2 plays no small role in facilitating this adaptation, since stronger, larger weeds are the result.
One variant of pigweed reported on a farmer's property grew to six feet in height on a stalk the width of a baseball bat's wide end. The weed was so tough, it damaged mechanical parts of his cotton picking equipment and had to be rooted out by hand. The farmer had to hire 20 labor hands to attack the weeds using hoes, even then breaking a number of them.
The emergence of these super weeds, especially as threats to farm productivity had already convinced many farmers they had to resort to much more toxic weedicides to get the job done. That included using such infamous carcinogenic agents as: 2, 4- D, dicamba and paraquat. But critics warned given the uncontrolled factors afoot, such as ever increasing CO2 concentrations (now tipping at nearly 400 ppm) this solution may be 'too little, too late'.
Today, and as I've noted in previous blog posts, the situation has gotten so bad that a new GMO version of ENLIST -enhanced crops has entered the food supply. Enlist DUO engenders a new potent herbicide mix of 2,4 D and glyphosate which Mehmet Oz (in his Sept. 19, 2014 show) described as a "health calamity" because of the likely effects including, non-Hodgkins lymphoma, Parkinson's disease and even Alzheimer's disease, see also:
As noted therein:
"GMO foods contain glyphosate, a horrifically destructive chemical that saps nutrients from foods and quite literally makes them toxic to consume."
We clearly have even bigger concerns going forward than enhanced allergy intensity - as bad as that will be. Indeed, if we are headed for an even larger increment in warming (4C or 6C by 2100) the situation could well become intolerable for billons. In addition given this new increment we could see the first year of no seasons much earlier, even before 2030. While climate change deniers are yukking it up, the weeds are on overdrive thanks to a greenhouse gas the deniers dismiss as a threat. Go figure!