Home
Weather Dublin
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
    Home / Editor's Pick /

    Pollen season: Climate change to increase length

13:00
22 September 2023

Pollen season
Climate change to increase length

Man sneezing

Here's a news update not to be sneezed at, climate change will lengthen and intensify pollen season, according to new research.

According to a study by the University of Michigan, if carbon dioxide emissions from vehicles, power plants, and other sources continue at the current rate, the world could experience a 200 percent increase in pollen this century.

The spring pollen season could also start up to a month earlier, and last longer into Autumn and Winter.

First, let's get the basics out of the way. Pollen is a dust-like substance, produced by grasses and plants, that contains the male genetic material that plants need for reproduction.

There are various sources of pollen, but the amount of each varies at different times of the year. Tree pollens, such as those from alder, birch, and oak trees, are most common in spring, kicking off allergy season. Around May, grass pollen becomes more of a problem, while later in the season, weed pollen becomes a problem.

A plant's growth affects how much pollen it produces. Global warming will boost plant growth in a lot of places, so pollen production will be influenced. It's not just about the temperature. Carbon dioxide emissions will also be a big driver of pollen increase.

Pollen season is now 20 days longer on average than it was in 1990, according to an analysis of 60 pollen-collecting stations across the U.S. and Canada. Seasonally, the quantity of pollen in the air is also increasing.

However, if you suffer from pollen allergies, Weather & Radar have you covered. You can check the latest pollen count for all of the major types of pollen in your area, with just a click.

Weather & Radar editorial team
More on the topic
Summer comeback on the horizon. Hot air from Spain. . . Tuesday 9 June 2026
European weather map showing temperatures and weather symbols. A red arrow points from Spain and southern France towards Central Europe, indicating the influx of very warm air. A sun-and-cloud symbol is shown over Germany, indicating pleasant, partly cloudy weather. Maximum temperatures of over 30 degrees are forecast for Spain and Portugal, whilst in Germany, France and the Alpine regions temperatures are mostly between 22 and 25 degrees. The map illustrates a warm south-westerly flow transporting summer air towards Central Europe.
Tuesday 9 June 2026

Hot air from Spain

Summer comeback on the horizon
Japan continues to face torrential rain. After Typhoon Jangmi. . . Friday 5 June 2026
Split image showing a weather radar map with a tropical cyclone and heavy rain bands moving across Japan on the left, and an aerial view of widespread flooding around a coastal town and river estuary on the right.
Friday 5 June 2026

After Typhoon Jangmi

Japan continues to face torrential rain
Heat is heading for Central Europe. Above 30 degrees. . . Friday 12 June 2026
On the left, a weather map showing the highest temperatures in Europe. On the right, a thermometer against a blue sky
Friday 12 June 2026

Above 30 degrees

Heat is heading for Central Europe
All weather news
This might also interest you
Bright and warm conditions take hold. Spring-like outlook. . . Thursday 23 April 2026
Split UK map showing warm temperatures up to 21 degrees in orange on the left and clear sunny conditions with temperatures from 12 to 18 degrees on the right, with sun icons across the country.
Thursday 23 April 2026

Spring-like outlook

Bright and warm conditions take hold
Wishes from Weather & Radar. Merry Christmas!. . . Thursday 25 December 2025
Outline of Santa Claus with a yellow and white hat, "Ho-Ho-Ho" next to the outline above a Christmas tree.
Thursday 25 December 2025

Merry Christmas!

Wishes from Weather & Radar
Seasonal warmth between spring thunder. Your weather - Your shots. . . Sunday 19 April 2026
Split image showing coastal sunset with layered lenticular clouds over rooftops and palm trees on the left, and a green valley with river and hills under soft daylight on the right.
Sunday 19 April 2026

Your weather - Your shots

Seasonal warmth between spring thunder
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwitteryouTubelinkList