Green House Effect

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere, it results in an elevation of the average surface temperature above what it would be in the absence of the gases.

What is Green House Effect?

Nitrous Oxide. (N2O) Water Vapor. (H2O) Carbon Dioxide. (CO2) Methane. (CH4)

Examples of Green House

Gases:

Process of Green House Effect

Natural Green House Effect is made from the heat energy radiated from the sun.

Sunlight passes through the atmosphere forming a cycle.

The cycle continues as some of the heat Green House gases are naturally present.

Sunlight passes through the atmosphere gets trapped and the leftover spreads in the space.

Natural Green House Effect

Activities done by man such as deforestation, etc. result in increment of Green House Effect.

Greenhouse Effect also increases by burning fuels in open.

Man-Made Green House Effect

How does the GHE work? The greenhouse effect works like

an actual greenhouse, a place to keep growing plants nice and warm.

This is the same process that keeps the Earth and the life on Earth nice and warm.

Visible light enters the top of the Earths atmosphere, some of it is scattered by air molecules and most of it is reflected back into space.

When the sun’s rays hit the Earth, 70 % of the energy stays on the planet, absorbed by land, oceans, plants and other things and the other 30% reflects back into outer space by clouds.

But the 70% doesn’t stay on the Earth forever, the things around the planet that absorb the sun's heat eventually radiate a portion of that heat back out at a different wavelength.

This process keeps the Earth in radiative equilibrium; the suns rays continuously hitting the Earth warming it, and then the warm Earth sends back the radiation back into space cooling itself.

Some of that released radiation makes it into space, and the rest of it ends up getting reflected back down to Earth when it hits certain things in the atmosphere, such as carbon dioxide, methane gas and water vapor -- the car windows. The heat that doesn't make it out through Earth's atmosphere keeps the planet warmer than it is in outer space, because more energy is coming in through the atmosphere than is going out. This is the greenhouse effect that keeps the Earth warm.

Rising temperatures cause water of the

oceans along with the sea to increase

Increasing temperatures melt ice as it

starts to flow into the seas of Antarctica

and Greenland.

Sea levels rise by 20-40 cm causing

tsunamis and floods in areas with low

coast areas e.g. Bangladesh and

Netherland

Flood in many areas cause danger for

living things

Effects On Sea Levels

Changes in the weather affect the growing crops

around the world.

Crops of wheat and rice grow well in high

temperatures.

Sugarcane and maize don’t survive in high

temperature and end up dying.

Furthermore change in the amount of rainfall affect

the growth leading to scarcity of food.

South-Eastern part of the world will be

affected as people will suffer without food .

Effects on Farming

Changes make it hard for humans to adjust

and adapt to climate.

Avoiding all the disasters moving from one

place to another will be hard.

While weather and temperature changes, the

homes of plants and animals will be affected .

New homes for animals may not be safe

causing loss in animal population.

Effects on People and

Animals

Countries all over the world will be

affected

Britain and Southeast will have a

risk of droughts

Africa won’t have

enough water.

Effects On Water

Wasteful buying- If you don't need or truly want - something, don't buy it. It's going to end up

in the garbage. Turn off the lights when you leave the room. - Don't leave your television on while you go

to sleep. Only turn on the water tap when you need it. For example, turn it off while you

- are putting toothpaste on the toothbrush. - Turn it back on when you need it.

How to prevent Man-made Greenhouse Effects

Effects On Weather Increasing in Greenhouse gases will change

weather around the world.

North-western countries have an increase of

temperature .

Summers will be hotter and winters would be

cooler

Some places will become hotter and wetter

while some will be dry and cooler.

The world will change with droughts,

storms, floods, etc.

Reduce, reuse and recycle. - Reduce the things that your needs.- Reuse items that you, have until they

are good for nothing. Recycle all that is possible.

Choose natural gas over coal and oil every chance you get.

- For example ; when barbecuing. Get a hybrid or an electric car when

shopping for that new car. - If this isn't possible, choose a small car

that gets good gas mileage.

Form an environmental club in your high school , college or community.

Walk to places or get there by bike. - It will improve your health and the

health of your planet. Get involved in tree planting projects.

Thank You!Made By: Ishita Saxena