Diary of Unknown Symptoms

Mystery of the Internal Vibration

Entry for March 06, 2007

Higher carbon-dioxide levels can have an effect on allergies?

The sneezing ahead

Weed physiologist Lewis Ziska, with the U.S. Department of Agriculture, is studying the effect of rising carbon-dioxide levels on noxious plants, particularly ragweed. In tightly sealed containers, he recreated the atmosphere of pre-industrial conditions (280 parts per million), present-day conditions (370 ppm) and the estimated level of carbon dioxide for 2050 (600 ppm). Ragweed sucked up the gas. “It’s like feeding a hungry teenager,” he said. Current conditions produce 131 per cent more ragweed pollen than the pre-industrial levels. Future conditions produce 320 per cent more.

Source: Los Angeles Times


March 6, 2007 - Posted by | Health | , ,

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