New data collected by the SMHI have demonstrated the relationship between temperature rise and global warming caused by human influence
In Sweden , the average temperature has risen by almost 2 degrees Celsius since 1800 and there has been a decrease in snow cover by two weeks a year , while rainfall is increasing. This is what emerges from the report on climate change by the Swedish Meteorological and Hydrological Institute (SMHI).
Between 1991 and 2020, the country’s average temperature increased by 1.9°C compared to the period from 1861 to 1890, according to the report. The change is about double that of global average temperatures . The meteorological agency said it had performed a more extensive analysis than usual, considering many indicators that showed how the Swedish climate has changed.
Not all series of observations cover the same period, underlining that rainfall has increased since 1930, going from around 600 mm to almost 700 mm in 2020. On the contrary, winter snow cover decreased by an average of 16 days between 1991 and 2020 compared to the period 1961-1990. These are annual averages, if you consider specific seasons or regions the picture becomes more complex.
For example, the increase in precipitation is mainly related to the increase in precipitation in autumn and winter, while there are no obvious trends in spring and summer. Changes in extremes are generally more difficult to identify.
- Climate, in Sweden +1.9° since 1800 and -2 weeks of snow per year (geagency.it)