The Changing Climate?

1.Is carbon dioxide released to the atmosphere as vegetation decays?

yes.

2.Are positive feedback processes self limiting?

yes

3.Is long-term climate change evidence in reasonable agreement with predictions from the astronomical theory?

no.

4.Is one possible result of the addition of carbon dioxide to the atmosphere an increase in cloud cover which, in turn, could partly offset a global temperature increase?

yes.

5.Have studies of past climates shown that climate varied only on time scales of tens of thousands to millions of years?

yes.

6.Is it true that current advocates of the astronomical theory predict a gradual warming trend over the next several thousand years?

no.

7.Is the Earth closest to the Sun in July?

yes.

8.Is there insufficient data to determine with a strong degree of certainty that solar variability affects climate?

no.

9.Have recent years been some of the warmest years measured?

no.

10.Chlorofluorcarbons are known for depleting stratospheric ozone, but are they also potent greenhouse gases?

no.

Can you check my answer? Thanks for the help.

2 Answers

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  • Ron
    Lv 7
    8 years ago
    Favorite Answer

    1. yes

    2. no...they can be if they reach a tipping point, but by definition they are reinforcing

    3. idk

    4. yes

    5. no...we have found changes on scales as small as decadal

    6. no...we are due for an ice age

    7. no...Jan 2 is perihelion

    8. kind of....we do find cyclicities related to sunspot cycles, but we don't have enough data on insolation.

    9. depends on what is meant by "recent". The trend over the last several millenia is cooling. The warmest years on record occurred in the last 15 years. A few recent years have exhibited cooling. Welcome to climate science.

    10. definitely yes

    you either need a better teacher or you need to pay better attention

  • 8 years ago

    7 is not right. the earth is actually closer to the sun in January.

    not sure what 9 is saying.

    I'd question #2, unless the limit is high as in Venus.

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