CO2, Global Warming, and hay fever OgrenThe Thomas added benefits of organic matter in soil has been known and are usually attributed to nitrogen, greater water retention capacity and an increase in the activity of earthworms and soil microbes. But research has shown that increased carbon dioxide (CO2) free, that accompanies added organic matter is certainly one of the main reasons why adding organic matter in the soil, increasing plant owners growth.Greenhouse have long understood that plants consume CO2 and oxygen caldo in a greenhouse full of plants through the process of photosynthesis, plants can quickly use most of the available CO2 and then their growth slows or stops. To compensate, producers of old used to place boxes or flats of fresh manure on their banks for cash. If the digested manure has launched greenhouse gas CO2 in the air and the plants grew faster as result.In today's modern greenhouses, especially those with concrete floors, lack of CO2 is always a concern. Most of the new greenhouse ranges are now equipped with automatic CO2 regulators that control the amount of CO2 in the air in the greenhouse and be more like needed.In into the greenhouses with CO2 gas generating growth the plants not only grow larger – - IT also mature earlier. So what does this have to do with global warming and allergies? As they become more and more dependent on burning oil and if our global temperatures continue to rise, carbon dioxide levels, increased our air. Voordat verkiezingen we de laatste in de VS had aangenomen, ten onrechte, dat het niet welke uitmaakt kandidaat of verkiezingen won, werden nieuwe controls zullen worden geplaatst op de CO2-uitstoot. We know better now.The U.S. with mass consumption of fossil fuels (the U.S. produces about 25 percent of man-made worldwide carbon dioxide). You also experience the greatest increase in CO2. Actually, CO2 accounts for 80-85 percent of the heat trapping (greenhouse) gases contributing to global warming.The idea is now called the "Greening Theory" considers that this extra CO2 . This will result in plant growth and therefore the resulting increase in food. There is some merit to this theory, but there are many drawbacks Allergy too.Pollen There are many negative effects of global warming, but let's see here, pollen production and affects allergies allergies.Since 1959 in the U.S. . increased dramatically from 2 to 5 percent of the affected population, less than 38 percent. Largely because of the huge horticultural "success" of the much-simplified theory of "litter-free" landscape and have great cityscapes are full of wind-pollinated dioecious male cultivars (clones) of trees and shrubs. The modern landscape trees result in surrounding air with unnaturally large amounts of allergenic pollen. Because the "disorder" of urban trees women are now so rare, almost none of this pollen is now trapped, removed from the air and became the seed. (Female trees produce no pollen, ever, but they make seeds, pods and fruits.) We have nice sidewalks but pollen-filled air.Under normal levels of carbon dioxide, male cloned trees will always produce abundant amounts of pollen . Under high concentrations of carbon dioxide, which produce much more. The increase in temperature itself also results in greater pollen production and pollen production that starts in early spring and lasts longer in the fall. Research is showing that under stress conditions male plants are able to take more water than women. Under conditions of stress such as drought, male trees are also able to keep the water already better than the female plants. When many sources of water and nutrients in soil increases as the carbon dioxide in air will result in larger urban trees, the trees of Allergy, pollen.Increases may increase carbon dioxide to increase the plant growth, but only if there is enough available extra water and nitrogen in the soil to support this additional growth. Growth of the interesting things when the supply of water and nutrients are not sufficient to support this additional CO2-induced physiological occur in plants. First, it is an additional pressure on the plants and stress often results in a