冰岛地热温室：在火山与冰川之间种出新鲜蔬果
In a country where winter darkness lasts for months and the ground is often frozen, you might not expect to find fields of ripe tomatoes and fragrant basil. Yet Iceland has become a quiet innovator in agriculture, thanks to one abundant resource: geothermal heat. Pipes beneath the soil carry hot water from volcanic springs, warming greenhouses even when the air outside drops to -10°C.
The most striking example is the village of Hveragerði, often called the 'Greenhouse Town.' Walk down its main street, and you'll see glass and polycarbonate structures steaming in the cold air. Inside, farmers grow cucumbers, bell peppers, and even tropical fruits like mangoes using LED lights that mimic the sun. The soil is heated from below, so roots stay warm while the sky above is a deep winter blue.
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