吉恩-巴普蒂斯特 P. 凯尔: 冰岛的超级地下火山

冰岛的超级地下火山

虽然冰岛的天气总是寒冷、潮湿又多风，但在地表之下，几乎无穷无尽的热量在蒸发。事实上，这个国家几乎所有建筑的供暖都来自于地热能，这个过程中几乎没有任何碳排放。那么，这种可再生能源到底是怎么回事呢？吉恩-巴普蒂斯特 P. 凯尔探索了两种利用地球自然热量的主要方法。
【由夏洛特·艾琳导演，爱迪生·安德森旁白，安德烈·艾雷斯创造音乐】

Geothermal energy powers nearly every building in Iceland, using natural heat bubbling just beneath the surface to provide warmth with almost no carbon emissions. The planet radiates three times more energy each year than humanity uses, yet geothermal provides only a tiny fraction of global energy. This untapped potential faces barriers like the cost and location of deep, high-temperature fields, but new technology is opening safer, cleaner ways to access this resource. From shallow heat pumps to deep magma pockets, Earth's heat could sustain people if harnessed wisely.