Key Issues on Debating about the Global Warming
详细信息
- 责任者：Wang Shaowu (Department of Atmospheric Science ; School of Physics ; Peking University ; Beijing 100871 ; China) ; Ge Quansheng
- 刊名：Advances in Earth Science
- 出版年：2010
- 卷期：25(6)
- 关键词：全球变暖 ; global warming
- 页码：p.656-665
- 图表：3 illus., 95 refs.
- 分类号：1800
- issnNo：ISSN1001-8166
- isbnNo：CN62-1091/P
摘要
Key issues on debating about global warming are reviewed: 1) the global warming doesn’t pause. Global surface temperature in recent years oscillates on a warm level; 2) does the global warming be caused fully by anthropogenic factors? The answer is no. ENSO, solar activity, volcanism, and thermohaline circulation can also exert impact in some extent on climate change. The natural factors may sometimes overwhelm the anthropogenic effect in the interannual to interdecadal time scale. Specially, the solar activity factor should be given more attention; and 3) does the impact of global warming become more evident recently? The answer is yes. New observational data indicate that the melting speed of glaciers and ice caps and rising speed of sea level in recent years have exceeded the related projections by IPCC 4th Assessment Report. Accordingly, the updated projection of the future sea level also increases.