Scientific findings on climate change in the IPCC Fourth Assessment Report :

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  • KONDO Hiroki
    Japan Agency for Marine-Earth Science and Technology Advanced Earth Science and Technology Organization

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  • ＩＰＣＣ　第４次評価報告書における気候変化の科学的知見　　解説シリーズ「気候変動に関する政府間パネル第四次成果報告書を読む：２０１４年へ向けて」
  • ネットワークと携帯電話を使用した映像制作演習の遠隔授業の実施報告
  • ネットワーク ト ケイタイ デンワ オ シヨウシタ エイゾウ セイサク エンシュウ ノ エンカク ジュギョウ ノ ジッシ ホウコク
  • IPCC第4次評価報告書における気候変化の科学的知見
  • IPCC ダイ4ジ ヒョウカ ホウコクショ ニ オケル キコウ ヘンカ ノ カガクテキ チケン
  • 解説シリーズ「気候変動に関する政府間パネル第四次成果報告書を読む：2014年へ向けて」

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Abstract

Intergovernmental Panel on Climate Change (IPCC) published its Fourth Assessment Report (AR4) in February 2007. Based on updated observational facts, it clearly confirms the actually ongoing global warming for the first time as "Warming of the climate system is unequivocal." As for the attribution, it says more certainly that global warming is "very likely due to the observed increase in anthropogenic greenhouse gas concentrations." Best estimate and possible range values are now available in projection thanks to more available and advanced models. The climate-carbon cycle feedback has begun to be quantitatively projected with its positive and additional warming effect<BR>Besides, The AR4 also points out related natural disasters: "It is very likely that hot extremes, heat waves and heavy precipitation events will continue to become more frequent." And "It is likely that future tropical cyclones (typhoons and hurricanes) will become more intense." For adaptation measures, more regionally detail projection outcomes are requested.

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