"Beyond the area it covers, the influence of polar ice extends out to ocean circulation and planetary weather patterns. For instance, warm winter temperatures in Europe result from ocean currents partly driven by meltwater from Arctic ice. So changes to polar regions could hold far wider ramifications."
"On a smaller but no less important scale, glaciers dotted about the globe from Kilimanjaro to the Karakoram mountains play significant role in their regional hydrology and climate, but evidence from a variety of sources suggests the majority of the world's glaciers are currently undergoing melting. The long-term wide-area observations carried out by Earth Observation satellites such as Envisat and ERS provide authoritative evidence of such trends and enable estimation of the consequences should such melting continue into the future. "
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