Human Impact on the Carbon Cycle

What is one of the effects of deforestation?

• Disrupts photosynthesis and cellular respiration

• Some sunlight energy that hits Earth radiates toward space, but some is trapped by atmospheric gases.

• People don't have as much resources to build houses

• an increase in the Earth's temperature causes ice to melt, so more radiation is absorbed by the Earth's surface leading to further increases in temperature.

Stromatolite

• A banded limestone structure containing fossilized bacteria that releases methane

• The Earth's crust

• Ability of a surface to reflect light

• A haze over the earth blocking the sun's radiation

Disruption of Photosynthesis and Cellular Respiration

• Pulls carbon dioxide from the atmosphere. It turn it causes CO2 productions begin to fall and methane production to rise.

• Intensifies the water cycle and accelerated the weathering of rocks

•  Excess carbon dioxide in the air and oceans; carbon dioxide levels go up

•  Produced methane, causing the temperature of the earth to rise which then caused this bacteria increase in population therefore increasing the methane in the atmosphere (a postive feedback loop)

How does the greenhouse effect work?

•  Ability of a surface to reflect light

• Some sunlight energy that hits Earth radiates toward space, but some is trapped by atmospheric gases.

• Deforestation disrupts photosynthesis which increases the amount of carbon dioxide in the air.

• It forms a haze over the earth which deflects sunlight and causes temperatures to drop.

Warmer climate causes...

• The melting of snow & glaciers, raising the ocean levels.

• There to be more deforestation and in turn more photosynthesis processes occur

• The earth to have a lower albedo which increases the temperature even more

• The earth to have a higher albedo which increases the temperature even more

When the climate warms there is less snow and ice. The the earth's surface has a ______ albedo

How did stromatolites change the atmosphere? (choose the best answer)

• Produced more methane, causing the temperature to rise

• Caused the melting of snow & glaciers, raising the ocean levels.

• Caused the earth to have a higher albedo

• Caused there to be more violent hurricanes mroe frequently

How did the weathering of rocks change the atmosphere?

• Pulls carbon dioxide from the atmosphere. It turn it causes CO2 productions to fall and methane production to rise.

• The climate warms and there is less snow which in turn causes the earth to have a lower albedo.

•  an increase in the Earth's temperature causes ice to melt, so more radiation is absorbed by the Earth's surface leading to further increases in temperature.

•  Disrupts photosynthesis and cellular respiration

How did stromatolites change the water cyle? (Increase or decrease?)