In one study, accelerating spring's arrival by 30 days prompted a 54 percent increase in ragweed pollen production.

在一个研究中表明，春天加速30天到来提高了花粉54%的产量。

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Conclusion Significant difference exists between the extract of artemisia pollen and ragweed pollen, with the former being more complicated.

结论艾蒿花粉与豚草花粉提取液蛋白组分差异较大，前者更复杂；

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The findings correlate with analysis last year by the National Wildlife Federation that found ragweed growth rates and pollen counts increased with global warming.

这些发现是基于去年国家野生动物联合会豚草的生长速度和花粉数量随着全球变暖增加的分析得出的。

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So yes, there will be more ragweed pollen, and somewhat more pollen from all plant species.

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Such traits -- whether of viruses, ragweed pollen or cancer -- are called antigens.

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The spring allergy capitals are based on tree pollen counts, while the fall cities are ranked on ragweed pollen counts from September through November of the previous years.

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