Physics Test 2
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What causes slowing of the Thermohaline Cycle
- SLows because of more fresh Water being put into the ocean
- i.e: Melting of land ice
Two things that contribute to sea level rise?
What does not contribute?
- Do Contribute
- 1) Melting of Land Ice
- 2) Thermal Expansion
- Do Not
- 1) Melting of Sea Ice
IPCC relies on 2 types of Work..? What do they produce
Detection & Attribution
They produce Predictions
Detection is and is used by?
Detection is data takers that establish if something unusual is occuring.
Used by the IPCC
Attribution is and used by?
Study's 2 find the likely hood that humans were/are involved
Used by IPCC
How Much C02 is added by humans per year
30 Billion Metric Tons
The IPCC consists of
__________ Scientific expert reviews
________ Authors and ______ Lead Authors
- 130 Countries
- 2500 scientific expert reviews
- 800 Authors and 400 Lead Authors
Antarctic holds _____% of freshwater
Greenland is melting at _____ meters
Antarctic is melting at _______ meters
- Greenland 7 meters
- Antarctic 60 meters
____ % of population lives near the ocean and _____ of large cities are near ocean?
- 10% of population
- 2/3 of large cities
Mass of fresh water vs Mass of Salt water
- Fresh= 7.61x10^23lb
The atmosphere is comprised of
- 78% Nitrogen
- 21% o2
- .93% Argon
- .07% Other
Weins displacement law does what?
Weins displacement law relates the temperature of a body to the wavelength
1/4 of heat transfer is done by this movement and this same movement moves 1015 wats per day?
Forcing can be seen as....
Elements forcing more energy on our planet
Water Vapor in a nut shell-
____% Going UP
Name 2 Sources______
Name Sink Source_____
Atmospheric Life cycle_____
- Going UP: 1%/year
- Sources: Breathing 10%, Evaporation 90%
- Sink: Condensation
- Life Cycle: 9 Days
C02 In a nutshell-
___% Going up in Year
Name 2 Natural and 2 human Sources
What are the Sinks___
Atmospheric Life Cycle____
- Going up: 3%/year
- Natural: Volcanoes
- Human: Burning FF
- Land Change
- Life Span: 100 years
CH4 in a nutshell-
___% Going up
Name 2 human sources and 2 natural
Atmospheric life Cycle____
Going up: 150% since 1750 or 1%/year
- HUman: Rice Cultivation, Cows, Thawing Ice, Oil and Gas Extraction.
- Natural: Wetlands and termites
- Life Cycle: 10-12 years
Geo engineering can be broken into two categories?
- Carbon Capture and Storage (CCR)
- Solar Radiation Management (SRM)
Carbon Capture and storage downsides? "2"
- 1) Very energy intensive 1/3 of power plants energy
- 2) Carbon wells could be disturbed.
- ex. 1986 deposit killed animals within 25 miles
Solar Radiation Management(SRM) is...? What are some examples of this and what do they not address
- SRM is response to warming by reducing the amount of solar radiation reaching earth surface.
- Ex. Salt spraying clouds to whiten
- Reflective discs
- Does not address acidity of ocean water
The 2007 IPCC narrowed the predicted rise in sea-level to ______ over the century
If everyone on Earth took a dip in the sea at the same time, how much would sea-level rise?
James Hansen speculates that a _____ warming of the earth would eventually melt enough of the greenland and antarctic ice sheets to produce a spectacular sea rise of 25 m (80)ft.
5 degrees F
The Rough Guide to Climate Change discusses a study called RAPID that collected data from 2001 to 2008. Briefly describe what is being measured in this study.
The flow of the meridional overturning circulation
Each year a net influx of roughly seven gigatonnes of C02- which includes close to ___% of all the c02 produced by human activity - goes into the sea.
A 1999 Roper poll concluded that less than _____ of consumers know where their electricity comes from?
1/3 of consumers
Why is a bird able to stand on a high-voltage wire?
Because there is no potential difference across its body.
What is the name of the law that related the current, potential difference and resistance in a electric circuit.
The rate at which electrical energy is delivered to a device is the power. The power delivered is equal to the _____ X current (amps). Think of Diagram.
VOltage X Amps (current)=P or Watts
As more devices are added to a series circuit, the total resistance for the circuit increases. Remember that a series is R= R1 X R2...Etc.
T or F
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