地理漫步·世界地理英语30篇（6）

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山脉既是气候屏障，也是文化桥梁

Mountains force moist air upward, cooling it until rain falls on one side and leaving dry ‘rain shadows’ on the other.
The Himalayas block cold winds from Siberia and monsoon moisture from the Indian Ocean, shaping two vastly different climates.
Andean communities developed terrace farming and freeze-drying techniques to thrive at altitudes above 3,500 meters.
Alpine villages in Switzerland and Nepal share similar challenges: isolation, avalanche risk, and tourism-dependent economies.
Mountain passes have served as trade routes for millennia—think of the Silk Road or Inca road system Qhapaq Ñan.
Glaciers in the Rockies and Alps store winter snowmelt, releasing it slowly to feed rivers through summer droughts.
Warming temperatures shrink glaciers faster than snow can accumulate, threatening water security downstream.
High-altitude ecosystems host unique species found nowhere else—like the snow leopard or Andean condor.
UNESCO’s mountain biosphere reserves aim to balance conservation with sustainable livelihoods for local residents.
Mountains remind us that physical barriers can also become corridors for exchange, adaptation, and resilience.