Given this unequal resource distribution, highland Incas needed access to the products of lower, warmer climatic zones in order to enlarge the variety and quantity of their foodstuffs.

考虑到资源分配的不平等，高原印加人需要获得海拔较低、较温暖的区域的产品，以扩大食物的种类和数量。

youdao

They lived in Yosemite Valley near the river. During the extremely cold winters, these people would move to lower, warmer areas.

在严寒的冬天，这些人就迁移到低矮温暖的地方，而当冬天过去后，他们又回到原先居住的地方。

youdao

This is because as the ice sheet melts, its surface will be at ever lower altitudes, where the air will be progressively warmer, even if global warming ceases.

这是因为，随着冰盖融化，其表面高度将越来越低，即使全球变暖停止，那里的空气也会逐渐变暖。

youdao

During the extremely cold winters, these people would move to lower, warmer areas.

VOA: special.2009.01.07

The wide divergence is due to the lower values being on warmer days, although the team hopes to be able to improve the energy savings even further with improvements to the program.

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But with global warming these areas are shrinking, so that plants adapted to the warmer, lower habitats slowly invade the higher elevations.

UNESCO: 83e

Turning blades of the turbines mix up this air, cool with warmer, and thus lower the temperature of the higher up air.

FORBES: Wind Farms Cause Global Warming!