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Unit 9.2 APES - Gurpiya Singh
Reducing Ozone Depletion
Terms in this set (30)
Depletion of fish, especially because of overfishing
What was the agreement that banned CFCs in many countries and was effective?
Aquatic animals becoming endangered or more growing of aquatic plants for food.
Was the Montreal Protocol effective?
It was kind of effective as the numbers did decrease.
Unwanted underwater creatures (fish, etc) caught during commercial fishing for different species.
When did the Montreal protocol go into effect?
What was the effect of the ODS consumption?
It has dropped significantly.
What was the effect of the ozone hole area?
It was staying steady.
How did the Montreal protocol affect the Antarctic Ozone Hole between 1979 - 2010?
It did not get better, but it did not get worse.
How can Ozone Depletion be mitigated?
By replacing ozone depleted chemicals with substitutes that do not deplete the ozone layer.
What are greenhouse gases?
carbon dioxide, methane, water vapor, nitrous oxide, chlorofluorocarbons
What Greenhouse gas is mostly used?
How do Greenhouse Gasses work?
By trapping in heat
Natural Greenhouse Effect
More heat escapes into space
Human enhanced Greenhouse Effect
Less heat escapes into space.
What does the Natural Greenhouse Effect do?
Keeps the surface temperature at a level necessary for life.
Greenhouse gas potency
Heat trapping molecule of one GHG molecule... the standard is carbon dioxide.
How is data collected?
Recent climate - thermometers, sensors, gauges
Ancient climate - Ice cores, tree rings, ocean sediments, coral reefs, sedimentary rocks.
Are levels of CO2 increasing or decreasing?
What carries heat around the world?
Atmospheric circulation patterns (Hadley cells, jet streams), and ocean currents.
How do the changes of heat effect global precipitation?
- Some places get colder, other places get warmer.
- Some places flood, other places drought.
How do temperature and precipitation patterns affect crops?
Loss of agriculture, shift to new crop.
What do ice melts lead to?
Sea level rise, positive feedback loop, decrease in habitat or food availability for polar species.
Where does sea level rise come from?
Thermal expansion of water
What happens when the marine ecosystem is split?
Creates new habitats on continental shelves, but deeper communities may no longer be in the photic zone.
What is the main cause of climate change?
What causes Global Warming?
Greenhouse gasses trapping infrared radiation in the troposphere
What does ozone depletion lead to?
Lets more UV radiation through the stratosphere.
What do burning fossil fuels, deforestation, and industrial agriculture release?
Why is CO2 not good for the environment?
Warmer, less oxygen, more acidic
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