High on the Qinghai-Xizang Plateau, the ground stays frozen, with only the top few meters melting each summer. Although the region is warming about twice as fast as the global average, a new study finds that more than a third of its permafrost, mainly in the central plateau, has gained ice since 2000. Stronger westerly winds bring more rain and snow, which seeps into the ground in summer and freezes again in winter.