Susanna Riva Last summer brought Europe exceptionally hot weather, followed by a prolonged drought and wildfires that hit several areas of the continent. Christine Lagarde , President of the ECB , used the central bank's official blog to remind people that these phenomena are not just environmental warnings, but also have measurable economic consequences.
Analyses show that the regions hardest hit by heatwaves experience a 1,5% drop in economic activity two years later . Looking longer term, four years after a severe drought, the loss of growth drops to 3% . These data, while seemingly abstract, translate into lower tax revenues, reduced investment, and difficulties for local businesses.
Immediate impact of heat on economic activity
Extreme heat has directly impacted agricultural productivity, demand for cooling energy, and worker health. Regions with above-average temperatures have seen a contraction in regional GDP, especially in sectors most dependent on outdoor labor.
The 1,5% loss over two years was attributed to factors such as decreased crop yields and increased operating costs to ensure climate comfort in working environments.
Data two years after the heat wave
According to estimates published by the ECB, the economies of the hardest-hit countries have experienced a decline in real GDP compared to the euro area average. The analysis, based on annual comparisons, highlights how the 1,5% decrease is reflected in a decline in household disposable income and a contraction in spending on durable goods.
Long-term consequences of drought
Droughts, which are more prolonged and severe, have a more profound impact because they affect the productive capacity of entire sectors for years. In addition to the immediate damage to crops, water shortages limit industrial production, reduce the navigability of inland waterways, and increase pressure on urban water systems.
Four-year GDP decline
The ECB's calculations indicate that, four years after a significant drought, GDP growth in the most affected regions is 3% lower than the eurozone average. This decline translates into a cumulative loss of productive capacity, with knock-on effects on the labor market and public finances.
Energy response and the role of renewables
During 2021-22, energy prices increased sharply due to rising gas prices. However, euro area countries mitigated the impact thanks to a rapid expansion of low-carbon electricity generation, particularly from renewable sources . The transition to green energy has reduced dependence on gas and contained the impact of energy costs on businesses.
The case of Spain
Among European economies, Spain stands out for its ability to increase the share of renewable energy in electricity generation. Thanks to massive investments in wind and solar power, Spain has been able to offset much of the increase in gas prices, keeping costs stable for consumers and businesses. This model demonstrates how a sustainable energy strategy can act as a buffer against fluctuations in the fossil fuel market.