Edit my paper and put it powerpoint
Jasmin Linthicum

Prof. Perkins, Pamela

Found of Oral Communication

10/29/2020

INFORMATIVE SPEECH OUTLINE

I. Introduction

A. Attention Getter: Climate change is an alteration in the natural aspects of the climate system which keep on for a number of decades or even much longer mostly 30 years at most. These aspects include extremes, averages and variability.

B. Reason to Listen: These aspects include extremes, averages and variability

C. Thesis Statement: The different causes of climate change like human causes such as adjustments in the constituents of the land use or the atmosphere, natural causes such as volcanoes eruptions, or internal changes in the climatic conditions, and lastly disturbance to the climate system.

II. Body

A. Natural causes

1. Natural cycles can make the climate to vary between cooling and warming

a. Although these natural aspects make the climate to change, they

are not the primary causes according to scientific knowledge.

b.

2. For instance, the Milankovitch cycles – As the Earth moves around the sun, the slant of its axis and its path change to some extent

a. These modifications impact the quantity of sunlight that reaches

the Earth

b. All these results to Earth’s temperature change. (Resnik 2016)

B. Human causes

1. Human beings lead to a change in climate by allowing greenhouse gases like carbon dioxide into the atmosphere

a. Currently, the amount of carbon dioxide in the air has increased

than ever in the last 800,00 decades

b. Human actions inspire climate change by increasing amount of

carbon (iv) oxide and many other greenhouse gases present in the air.

2. Altering the amounts of aerosols sprays and modifying the reflectivity of Earth’s surface by altering earth surface.

a. Besides the direct impact, the warming that comes from higher

concentrations of long-lasting greenhouse gases can be augmented by other processes.

b. All those contribute to climate change. (Manou and Mihr 2017)

C. A disturbance to the climate system

1. A close relation exists amidst atmospheric water vapor, the number of

prolonged greenhouse gases (mostly CO2) in the atmosphere, earth temperature and the extent of the polar ice sheets.

a. If one of the above aspects is altered or disturbed, the other

factors also respond through “feedback” developments which may intensify or dampen the initial disturbance state.

b. The feedbacks take place on an extended series of time scales:

like those influencing the atmosphere are rapid in nature

3. These traceable fluctuations interfere with the distribution of the solar

energy reaching the earth surface.

a. Thus causing variation in temperatures which in turn triggers

changes in the carbon cycle

b. ice sheets among others; that constitute to the amplified changes

in temperature response. (Hannah 2015)

III. Conclusion

A. In general, some of the causes of climate change can be natural or human causes such greenhouse gases and natural causes such as for instance, the Milankovitch cycles – As the Earth moves around the sun, the slant of its axis and its path change to some extent among others.

B. Although both human and natural factor results in climate change; human beings have proven to be the primary cause of climate change

Works cited

Hannah, Lee. “The Climate System and Climate Change.” Climate Change Biology, 2015, pp. 13-53.

Manou, Dimitra, and Anja Mihr. “Climate change, migration and human rights.” Climate Change, Migration and Human Rights, 2017, pp. 2-8.

Resnik, David B. “Climate Change: Causes, Consequences, Policy, and Ethics.” Bioethical Insights into Values and Policy, 2016, pp. 47-58.