Spanish scientists from the Autonomous University of Barcelona revealed a positive side effect of global warming. According to them, an increase in temperature by 1-5 °C will lead to a ninefold increase in the fragrance of some plants – for example, stone oak, wormwood, heather and Spanish dock.
The presence of odor in flowers is explained by production of terpene by the plant, and its concentration at the peak of flowering will gradually increase by the end of the century – by 0.34-9.1 times, depending on the plant species. This phenomenon will manifest itself to the greatest extent with respect to fruit-trees.
Scientists believe that such changes will also have a positive effect on the bee population, which will find it easier to find flowers by their stronger scent and pollinate them. However, other forecasts are not so bright: last year the average global temperature increased by 0.5 °C compared to the norm of the last 50 years, and by the end of the 21st century it is expected to increase by another 3 degrees, which will cause an increase in sea levels, floods and disease outbreaks.