Global WarmingBy : Retno Palupi

Subtitles :

- What is Global Warming- What is Green House effect- What causes global warming - History of Global Warming- Effect of Global Warming- What are people doing to stop

Global Warming- Solution of Global Warming

What is Global Warming Global warming is when the earth heats

up (the temperature rises). It happens when greenhouse gases (carbon dioxide, water vapor, nitrous oxide, and methane) trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This hurts many people, animals, and plants. Many cannot take the change, so they die.

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What is Green House effect The “greenhouse

effect” is the warming that happens when certain gases in Earth’s atmosphere trap heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse.

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Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on. Without it, the earth would be freezing, or on the other hand it would be burning hot. It would be freezing at night because the sun would be down. We would not get the sun’s heat and light to make thenight somewhat warm

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What causes global warming Many things cause global warming. 

One thing that causes global warming is electrical pollution.  Electricity causes pollution in many ways, some worse than others.  In most cases, fossil fuels are burned to create electricity. 

Fossil fuels are made of dead plants and animals.  Some examples of fossil fuels are oil and petroleum.  Many pollutants (chemicals that pollute the air, water, and land) are sent into the air when fossil fuels are burned. 

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Some other examples of using energy and polluting the air are:

- Turning on a light - Watching T.V.- Listening to a stereo- Riding in a vehicle- Playing a video game

History of Global WarmingSvante Arrhenius

(1859-1927) was a Swedish scientist that was the first to claim in 1896 that fossil fuel combustion may eventually result in enhanced global warming. He proposed a relation between atmospheric carbon dioxide concentrations and temperature.

He foundthat theaverage

surface temperature of the earth is about 15oC because of the infrared absorption capacity of water vapor and carbon dioxide.

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This is called the natural greenhouse effect. Arrhenius suggested a doubling of the CO2 concentration would lead to a 5oC temperature rise.

He and Thomas Chamberlin calculated that human activities could warm the earth by adding carbon dioxide to the atmosphere. This research was a by-product of research of whether carbon dioxide would explain the causes of the great Ice Ages. This was not actually verified until 1987.

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Effect of Global Warming The planet is warming, from North

Pole to South Pole, and everywhere in between. Globally, the mercury is already up more than 1 degree Fahrenheit (0.8 degree Celsius), and even more in sensitive polar regions. And the effects of rising temperatures aren’t waiting for some far-flung future.

They’re happening right now. Signs are appearing all over, and some of them are surprising. The heat is not only melting glaciers and sea ice, it’s also shifting precipitation patterns and setting animals on the move.

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1. Ice is melting worldwide, especially at the Earth’s poles. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.2. Sea level rise became faster over the last century.3. Precipitation (rain and snowfall) has increased across the globe, on average.4. Hurricanes and other storms are likely to become stronger.5. Sea levels are expected to rise between 7 and 23 inches (18 and 59 centimeters) by the end of the century, and continued melting at the poles could add between 4 and 8 inches (10 to 20 centimeters).

What are people doing to stopGlobal Warming

People are doing many things to try to stop global warming.  One thing people are doing is carpooling.  Carpooling is driving with someone to a place that you are both going to. 

This minimizes the amount of greenhouse gases put into the air by a car. Another thing that people are doing is being more careful about leaving things turned on like the television, computer, and the lights. Menu

A lot of people are taking time away from the television, and instead, they are spending more time outdoors.  This helps our planet out a lot.  Now, more people are even riding busses, walking to school, and riding their bikes to lower the amount of greenhouse gases in the air. 

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Planting trees and recycling also helps.  If you recycle, less trash goes to the dump, and less trash gets burned.  As a result, there are fewer greenhouse gasses in our atmosphere. 

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Solution of Global Warming1. We plan to offer honest value comparisons of products such as hybrid cars.2. Choice of building materials is just one part of what is known as green building.Green building can best be described as the birth to grave process of building.

conclution :

Remember to save our earth. All we need to do are plant new trees as much as we can and do recycling, reducing and reusing.

Thank YouLet’s keep our earth

from damage