Informative Speech Outline Global Warming Essay

848 Words Oct 4th, 2011 4 Pages
Title: Global Warming
Specific Purpose: To inform the audience about three issues of how global warming is affecting our weather, animals, and our future.
Thesis: According to National Geographic Average temperatures have climbed 1.4 degrees Fahrenheit around the world since 1880 and by 2050, rising temperatures could send more than a million of Earth's land-dwelling plants and animals down the road to extinction.
Introduction
I. Open with Impact: Is the climate warming? The impacts of global warming will be felt across the globe.

A. The effect of global warming driving animals into extinction
B. A rise in the amount of extreme weather disasters
C. The change it will cause to the earth in the future

II.
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4. In July of 2006 heat waves contributed to the deaths of at least 225 people in North America.
5. Warmer temperatures could increase the probability of drought
6. Warmer temperatures increase the energy of the climatic system and can lead to heavier rainfall in some areas.

Signpost and transition: Now that you know what effects Global Warming is having on our weather I will be telling you about how it will affect our animals.

II. Main Point: The reason for animal extinction is because our animals can’t adapt to rising climate changes.

A. These are some of the facts (nrdc.org, 2008)

1. The predicted range of climate change by 2050 will place 15 to 35 percent of the 1,103 species studied at risk of extinction.
2. Increasing global temperatures are expected to disrupt ecosystems, pushing to extinction those species that cannot adapt.
3. Some polar bears are drowning because they have to swim longer distances to reach ice floes.

B. Global Warming will drive our animals into extinction

Signpost and transition: The final aspect of Global Warming that I will be talking about is the effect it will have on our future.

III. Main Point: Our future is in for a drastic change from what we call normal today.

A. Rising sea levels could flood many South Seas islands and swamp large parts of Southeast Asia.
B. Researchers predict the earth’s temperature may rise to…

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