If weather is getting warmer, you're likely to have
more ragweed in that area and potentially greater effects on crop production.»
Not exact matches
This gets even worse the closer plants are to sources of carbon dioxide —
ragweed growing next to highways produces
more potent pollen than
ragweed growing away from large roads.
For the
more than 40 to 50 million American adult and children who suffer from the misery and discomfort of allergies, protecting themselves and their families from exposure to the usual suspects -
ragweed and pollen - means locking them selves indoors.
Ragweed pollen is the bane of many lives in the US, and climate change could help the plant become much
more common in Europe by 2050
Itchy eyes and runny noses are rarely fatal, but the risk of allergen exposure is increasing as insects migrate north to newly hospitable land while oak, birch and
ragweed disperse pollen
more intensely and for longer stretches of the year.
But in plots at the warm end of the tunnel that were also exposed to
more CO2,
ragweed (Ambrosia artemisiifolia), normally a cool - season plant, took over.
These results are similar to our other studies performed in other highly allergenic taxa such as
ragweed but with
more extreme outcomes and wider impacts.»
17 One
more reason to hate climate change: Researchers report that
ragweed pollen season in North America has lengthened since 1995 — by 16 days in Minneapolis, for instance.
«
Ragweed casts shade on soy production: Weed
more than nuisance for soybean.»
Rising temperatures mean longer and
more intense seasons for
ragweed and tree pollen, leading to
more runny noses and watery eyes.
Ragweed, specifically, grew faster, flowered earlier, and produced significantly
more pollen in these urban conditions.
As someone who is also concerned about the impact of
ragweed on crops, Ziska states, «If you have
more pollen, you have
more seed production, and it's likely you will have even
more seed the following year.»
The study demonstrated that the number of frost - free days, and a delay in the first autumn frost, has occurred since 1995 as a function of latitude, extending the
ragweed pollen season into the fall, particularly for the
more northern locations.
What they found was that the
ragweed season had indeed extended - for the
more northerly study sites particularly - by as much as a month when compared to 1995.