In the Belgian province of Limburg, a unique experiment is being conducted to study the future effects of climate change on pear farming. Scientists have set up 12 transparent domes in an orchard, simulating the weather conditions expected in 2040. These conditions include more frequent heatwaves, irregular rainfall leading to both droughts and floods, and overall higher temperatures. The purpose of the experiment is to assess how global warming will impact pear production in Europe, where extreme weather events have already affected fruit growers. Early results from the 2023 harvest suggest that while Belgian pears might escape severe damage, the ecosystem is showing signs of change, such as an earlier growing season. This could affect the way the ecosystem absorbs CO2 and other environmental factors.

The three-year study will examine the effects of the simulated 2040 climate on pear growth, with this year’s harvest being studied at the Flanders Centre of Postharvest Technology. Scientists are comparing pears grown under these future conditions with those grown under current climate conditions, focusing on factors such as size, firmness, and sugar content. Initial findings indicate that pears exposed to warmer conditions are softer and have a higher sugar content, which reduces their shelf life and storage potential, ultimately affecting sales for farmers. In recent years, European pear growers have already faced significant challenges due to climate-related issues such as drought, hail, and floods. Belgium’s pear production is projected to drop by 27% this year, caused by unusual weather patterns such as an early bloom and a late frost.