Zombie ice from the massive Greenland ice sheet will eventually raise global sea levels by at least 10 inches (27 centimeters) on its own, according to a study released Monday.

8月29日公布的一项研究显示，格陵兰岛巨大冰盖上的“僵尸冰”融化将使全球海平面上升至少10英寸（27厘米）。

Zombie or doomed ice is ice that is still attached to thicker areas of ice, but is no longer getting fed by those larger glaciers.

“僵尸冰”或“死冰”附着在较厚的冰川上，但受母冰川补雪减少影响，这些冰将无法再补冰。

That’s because the parent glaciers are getting less replenishing snow. Meanwhile, the doomed ice is melting from climate change, said study co-author William Colgan, a glaciologist at the Geological Survey of Denmark and Greenland.

研究论文的合著者、丹麦和格陵兰地质调查局的冰川学家威廉•科尔根称，由于气候变化，这些“僵尸冰”正在融化。

“It’s dead ice. It’s just going to melt and disappear from the ice sheet,” Colgan said in an interview. “This ice has been consigned to the ocean, regardless of what climate (emissions) scenario we take now.”

科尔根在一次采访中称：“这是死冰，它将融化并从冰盖上消失。不管我们现在采取怎样的气候排放方案，这些冰都会融入海洋中。”

> US appeals to farmers to plant two crops instead of one

美国呼吁农民尝试两熟种植制度 应对潜在的食物短缺危机

[Photo/Unsplash]

The US Department of Agriculture this summer has encouraged American farmers to grow one crop after the other on one piece of land to combat a potential food shortage.

美国农业部今年夏天呼吁农民在同一土地上连续种植两种作物，以应对潜在的粮食短缺危机。

Wheat prices have almost doubled, and exports have been restricted since the start of the conflict between Russia and Ukraine, two of the world's biggest wheat exporters. Global food supplies have been severely affected.

自俄乌冲突爆发以来，同为全球小麦出口大国的俄罗斯和乌克兰小麦出口受限，小麦价格几乎翻了一番，严重影响了全球粮食供应。

USDA is now pushing double-cropping, hoping to reduce reliance on Russian and Ukrainian wheat and also to boost the incomes of US farmers while fertilizer and fuel costs are soaring.

美国农业部现在大力推广两种农作物一年两熟，希望借此减少对俄乌粮食的依赖，并在化肥和燃料成本高涨的情况下，提高美国农民收入。

Double-cropping often requires years of learning, and risks of reduced production due to rain and heat mismatch and soil moisture restrictions, making the prospects uncertain.

两熟种植通常需要数年时间学习，且雨热不同步、土壤湿度限制等因素或导致减产风险，这些使得新种植制度的收益前景充满不确定性。

责编：田梦瑶

来源：ChinaDaily