scrpit for the previous podcast

1st person: wow it has been quite hot lately!

2nd person: yup , well it is because of global warming

1st person: what is global warming

2nd person : An increase in the average temperature of the earth's atmosphere especially a sustained increase that causes climatic changes The greenhouse effect acts to warm the plant and increase average global temperatures. This is seen as a major environmental hazard as average temperatures rise, leading to a possible change in weather patterns and agricultural output.

1st person :does the burning of fossil fuels affect the climate change too?

2nd person:yes you are right,it will also cause the greenhouse effect.

1st person : what is a greenhouse effect?

2nd person: some of the infrared radiation passes through the atmosphere but most is absorbed and re-emitted in all directions by greenhouse gas molecules and clouds. the effect of this is to warm the earth’s surface and the lower atmosphere

1st person: but fossil fuels have advantages too such as being very easy to find When coal is used in power plants, they are very cost effective. Coal is also in abundant supply Power stations that make use of fossil fuel can be constructed in almost any location.

2nd person: but there are also disadvantages in fossil fuels too Pollution is a major disadvantage of fossil fuels. This is because they give off carbon dioxide when burned thereby causing a greenhouse effect. This is also the main contributory factor to the global warming experienced by the earth .

1st person : how about the energy from the wind

2nd person : wind energy is a useful form of energy such as using windturbine to produce electricity. one of the greatest advantage of Wind Energy is that it is ample. Secondly, wind energy is renewable. Some other advantages of Wind Energy are that it is widely distributed, cheap, and also reducing toxic gas emissions. Wind Energy is also advantageous over traditional methods of creating energy, in the sense that it is getting cheaper and cheaper to produce wind energy. but the disadvantages is that Large land is needed people must clear lands to built the wind turbines so not all countries can use it .

1st person: well i prefer hydroelectricity as Inexhaustible fuel source

Minimal environmental impact but smaller models depends on availability of fast flowing streams or rivers

2nd person:well i prefer solar energy

1st person : why?

2nd person : Energy from the sun that is converted into thermal or electrical energy therefore it Greatly reduced pollution reduce, contribution to global warming and it also has Infinite energy resource.

1st person : It is available most abundantly in areas with a high number of sunshine hours. Where it is needed most, cold countries in high northern or southern latitudes, it is less easily captured and used.It is not directly available at night or under cloud cover and conversion into another form of energy storage systems are necessary for those times.

RRRRIIIIIIIIIIIIIINNNNNNNNNNGGGGGGGGG!!!!!!!!!!!!!!!

1nd person: recess is over , how fast ! anyway , thanks for the knowledge you have given me

2st person : no thanks