Climate Change and Hazards

Why does it take a long time to know if the climate has changed?

• Climates are atmospheric conditions over a long period of time.

• Climates take thousands of years to change

• Weather and climate are the same thing.

• Climate changes occur too quickly to measure

Earth's Weather and Climates are powered by:

• Plate tectonics

• The sun's uneven heating of the earth

• The wind

• Fossil Fuels

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NGSS.MS-ESS2-5

We can get information about past climates looking at

• Fossils

• Ice cores

• geologic formations

• All of these

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The peaks are interglacial periods, the valleys are ice ages. Which appears to last longer?

• Interglacial periods

• Ice ages

• They are the dsame

• Cannot tell from the graph

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Approximately how many degrees difference is there between the warmest interglacial period and the coldest ice age?

• 100 Degrees (F)

• 50 Degrees (F)

• 12 degrees (F)

• 6 degrees (F)

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Approximately how long have we been in this current interglacial period

• Less than 20,000 years

• Almost 50,000 years

• Over 100,000 years

• Nearly a million years

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The change of earth's tilt might be the cause of:

• Plate tectonics

• the Ice Age Cycle

• The Carbon Cycle

• The Greenhouse Effect

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Which year had the lowest level of Carbon Dioxide

• 1850

• 1986

• 2100

• Cannot not tell from the graph

Which period shows the largest projected increase in Carbon Dioxide

• 1850-1986

• 1986-2100

• Before 1856

• Cannot tell from the graph

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NGSS.MS-ESS3-5

Why would an increase in Oxygen in the atmosphere not increase global temperatures?

• Oxygen only exists as a gas in colder temperatures

• Oxygen is heavier than Carbon Dioxide

• Oxygen is not considered to be a Greenhouse Gas

• There is less than 1% of Oxygen in our atmosphere