全球變暖和氣候變化

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全球變暖和氣候變化(中文4800字,英文2800字)
  損傷的衛星照片顯示從2002年1月31號到3月7號在南極Larsen B冰架的突然坍塌(從左邊)。總共有3250km2的冰架已經坍塌。
涉及的主題:
氣候變化,全球變暖,IPCC
觀察擴大形象
 曲棍球:IPCC在2001年的評估中使用了北半球的平均溫度,因為它的形狀把它稱為“曲棍球棒”。全球變暖懷疑者把這種現象稱作中世紀變暖時期(950-1250)和小冰期(1400-1700)和在19世紀過分強調的變暖。從樹的年輪、珊瑚、冰芯和歷史上的記載獲得的時期顯示的是藍色,溫度計記錄用紅色表示,不確定的數據用灰色表示。曲棍球數據因此被相似的溫度修復數據證實了(下邊)。
Global Warming And Climate Change
Breakdown Satellite images show the sudden collapse of the Larsen B Ice Shelf, in Antarctica, from Jan. 31 to March 7, 2002 (from left). A total of 3,250 km2 of the shelf collapsed.
Topics Covered
climate change, global warming, IPCC
View Enlarged Image
HOCKEY STICK A plot of average temperature across the Northern Hemisphere (top) used by IPCC in its 2001 assessment, dubbed the “hockey stick” because of its shape, was decried by global-warming skeptics as hiding the Medieval Warm Period (950–1250) and Little Ice Age (1400–1700) and overemphasizing warming in the late 1900s. Data from tree rings, corals, ice cores, and historical records are shown in blue, and thermometer readings are in red; uncertainties in the data are in gray. The hockey stick data have since been substantiated with similar temperature

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