Ocean circulation
1. The well-mixed portion of the upper ocean.
  What is the mixed layer?
2.  The typical salt concentration of the world's ocean.
  What is 3.5% or 35 per mil?
3. Surface water motions to the right of the wind in the northern hemisphere. 
  What is Ekman transport?
4.  Convergence and sinking of water.
  What is downwelling?
5. Large-scale ocean circulation in which water sinks in the North Atlantic and
travels throughout the world's ocean before rising and returning at the 
surface to the North Atlantic?
  What is thermohaline circulation?

Carbon cycling
1. Fossil fuel formed by putting organic carbon under heat and pressure.
 What is petroleum?
2. Examples of these are the ocean, the atmosphere, and living biomass.
  What are carbon reservoirs?
3. Approximate fraction of atmospheric carbon dioxide released each year that 
remains in the atmosphere?
 What is half?
4.  Atmospheric CO2 levels are higher at this time of year.
  What is Northern Hemisphere winter?
5.  Material from which shells and limestone are made.
 What is CaCO3?
bonus.  Rock that is sensitive to chemical weathering.  
 What is limestone?

Ozone
1. The 1987 treaty that regulates ozone depleting chemicals.
  What is the Montreal Protocol?
2.  Ozone depletion that occurs in October over the South Pole.
  What is the Antarctic Ozone Hole?
3. An example of a chemical that catalyzes ozone destruction?
  What is chlorine or bromine or NO2?
4. Restricted chemical used for fumigating soil. 
  What is methyl bromide?
5.  Clouds that store chlorine during the Antarctic Winter.
  What are polar stratospheric clouds?

Climate change
1. Temperatures on Earth have increased by this amount over the last century.
 What is 0.6 degrees C?
2. If all of the ice floating on the ocean were to melt, it would raise sea 
level by this amount?
 What is 0 meters?
3. Spread of malaria, West Nile fever, and other tropical diseases.
 What is a possible impact of climate change on human health?
4. Computer simulations of atmosphere and ocean circulation used to forecast
climate
 What are general circulation models?
5. Example of a gas that can cause green house warming and also deplete the
ozone layer?
 What is CFC?

Kyoto Protocol
1.  Increases in these gas concentrations in the atmosphere have led to
the Kyoto Protocol negotiations process.
 What is CO2?
2. CO2 emissions are referenced against this year in Kyoto Protocol 
negotiations.
 What is 1990?
3. Examples of countries who have substantial CO2 quotas to sell.
 What are Russia, Ukraine?  (What is hot air?)
4. The number of countries that must ratify the Kyoto Protocol in order
for it to become active
 What is 55?
5. A Kyoto Protocol provision that allows industrialized countries to build
efficient factories in developing countries and claim credits.
 What is the clean development mechanism?