Climate on Earth has changed on all time scales, including long before human activity could have played a role.
さきほどもお話ししたように、地球の気候はとても複雑なシステムだ。
Like the earth's climate, the economy is a marvelously complex system.
過去100万年間で地球の気候はどのように変化してきたのでしょうか。
How has the climate of the earth changed over the past hundreds of thousands of years?
皆さんもご存知のように地球の気候は日々変化しています。
As we all know our planet's climate is changing day by day.
地球の気候は常に変化しており、将来もこの変化は間違いなく続く。
The climates of the earth have always been changing, and they will doubtless continue to do so in the future.
万年ほど前、地球の気候は寒冷・乾燥期に入り、その結果約260万年前から氷河期が始まった。
Around 10 million years ago, the Earth's climate entered a cooler and drier phase, which led eventually to the Quaternary glaciation beginning some 2.6 million years ago.
Earth's climate was warmer during the middle Eocene, possibly because atmospheric CO2 concentrations were considerably greater than they are today or possibly because of differences in ocean circulation.
However, humans are emitting greenhouse gases as fast as- or even faster than- the Siberian Traps, and Earth's climate is rapidly changing as a result.
現在から約2万1千年から1万8千年前の地球の気候は特に寒冷で最終氷期最寒冷期と呼ばれています。
The climate of the earth about 21,000 to 18,000 years ago during the LGM was particularly cold, with average temperatures 5 to 7 °C lower than the present-day.
The Earth's climate is constantly changing worldwide for some time, especially since the last fifty years, the warming is due primarily to human activities; climate change activism must give a final solution.
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