ESS: General

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466721

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CO2 levels have been fairly stable for 24 million years

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464449

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how long does it take carbonate deposition to recover?

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469093

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in the last 650,000 years, how many cycles of glacial advance and retreat have there been?

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469105

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Which is the largest reservoir of carbon?

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468850

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Over the last 4.6 ka, summers have been getting colder and the global average temperature trend is decreasing.

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469106

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Which of these processes is the major long-term source of atmospheric oxygen?

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469108

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How much higher were mean global temperatures during the Last Interglacial relative to the present?

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469109

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Episodes of abrupt climate change in the Late-glacial and Early Holocene (e.g Younger Dryas, Pre-Boreal, 8.2 kyr event) are thought to be a consequence of which natural forcing factor?

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468854

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Temperatures are warmer now than they have ever been in the past

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468855

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glacial-interglacial cycles in the first half of the Quaternary dominated by

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464325

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Plants amplify the natural weathering process in the attempt to gain nutrients

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464329

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plants effect weathering rates by a magnitude of?

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464364

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by how many degrees did the temperature reduce by in Lenton's sandbox experiment?

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464365

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photosynthesis in the ocean is responsible for how much of the oxygen source

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464366

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Plants oxygenated the ocean

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