Term
| In what way can climate change be considered a natural disaster? |
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Definition
- changes the frequency/ location of wet and dry patterns
- can cause some of the costliest events such as drought, ice storms, and floods |
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Term
| What proxy data do we use to see how the climate has changed over long term? |
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Definition
Tree rings
- tell us the growth of a tree each year
Coral – calcium, temperature
Ice cores- current polar climate indicated to be warmer than the past 250,000 yrs |
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Term
| Are we just in a normal “warm period”? |
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Definition
- there is confidence that temperatures in the last 50 years have been warmer than my period in the last 500 yrs
- large and continuing increase in global mean temperature |
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Term
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Definition
- difference between summer and winter climate
- global warming should be accompanied by an increase in continentality |
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Term
| What are the current changes in climate in the Northern hemisphere and the Oceanic Regions? |
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Definition
NH- decrease in temp
OR- increase |
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Term
| What proxy data do we use to see how the climate has changed over long term? |
|
Definition
Tree rings
- tell us the growth of a tree each year
Coral – calcium, temperature
Ice cores- current polar climate indicated to be warmer than the past 250,000 yrs |
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Term
| What is the current evidence of regional climate change? |
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Definition
- globe has established to be warming
- increase in NA winter temp
- Nunavut cooling of temp
- NW territories temp increase
- NE Canada- decreasing temperature |
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Term
| What have the recent sea level changes been? |
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Definition
- rising by 3 inches
- NE north American vulnerable to this change
- Greenland glaciers melting which will cause additional rises |
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Term
| Relationship between tropical cyclones and global warming? |
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Definition
no obvious trend in terms of frequency
- upward trend of hurricane intensity, fueled by warmer sea temperatures |
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Term
| Are the increases in sea surface temperatures normal? |
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Definition
| - no, caused by CO2 increase |
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