1. 1 THE CARBON CYCLE AND GLOBAL WARMING

2. 2 CARBON CYCLE Movement of carbon between the atmosphere, oceans, biosphere, and geosphere Movement of carbon between the atmosphere, oceans, biosphere, and geosphere

3. 3 BIOLOGICAL CARBON CYCLE The movement of carbon through the processes of photosynthesis and cellular respiration The movement of carbon through the processes of photosynthesis and cellular respiration Also, the consumption of living matter by other organisms Also, the consumption of living matter by other organisms The amount of carbon cycled through annually is a 1,000 times greater than the geological carbon cycle component The amount of carbon cycled through annually is a 1,000 times greater than the geological carbon cycle component

4. 4 RELEASE OF CARBON DIOXIDE CO 2 is also released into the atmosphere by: CO 2 is also released into the atmosphere by: 1.Decaying dead matter 2.Forest fires 3.Volcanoes 4.Burning of fossil fuels (coal, oil, gas)

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6. 6 HUMAN IMPACT Since the onset of the industrial revolution, burning of fossil fuels and deforestation have lead to increase of atmospheric CO 2 Since the onset of the industrial revolution, burning of fossil fuels and deforestation have lead to increase of atmospheric CO 2 There is strong evidence that supports the idea that these activities increase the atmosphere ’ s ability to hold in heat (greenhouse effect) and is resulting in climate change (global warming) There is strong evidence that supports the idea that these activities increase the atmosphere ’ s ability to hold in heat (greenhouse effect) and is resulting in climate change (global warming)

7. 7 GREENHOUSE EFFECT Greenhouse effect: process by which carbon dioxide and other gases in the atmosphere absorb infrared radiation from the sun, forming a “ heat blanket ” around the Earth Greenhouse effect: process by which carbon dioxide and other gases in the atmosphere absorb infrared radiation from the sun, forming a “ heat blanket ” around the Earth Some sunlight is reflected and other is trapped as heat to warm the Earth Some sunlight is reflected and other is trapped as heat to warm the Earth Enhanced greenhouse effect: caused from an increase of carbon dioxide, methane, and nitrous oxides from human activities into the air which traps more heat and raises the temperatures of the Earth ’ s surface Enhanced greenhouse effect: caused from an increase of carbon dioxide, methane, and nitrous oxides from human activities into the air which traps more heat and raises the temperatures of the Earth ’ s surface

8. 8 CLIMATE CHANGE Global Warming: an average increase in the Earth's temperature, which in turn causes changes in climate. (Different than weather) Global Warming: an average increase in the Earth's temperature, which in turn causes changes in climate. (Different than weather) A warmer Earth may lead to changes in A warmer Earth may lead to changes in 1.rainfall patterns 2.A rise in sea level 3.A wide range of impacts on plants, wildlife, and humans When most scientists talk about the issue of climate change, their concern is about global warming caused by human activities. When most scientists talk about the issue of climate change, their concern is about global warming caused by human activities.