Solar Energy

Solar energy is the light and radiant heat from the Sun that influences Earth's climate and weather and sustains life.It is known that solar energy can provide many things for use for example, heat engine or photovoltaic means, daylighting and space heating in passive solar, hot water, thermal energy for cooking, and high temperature process heat for industrial purposes.

Some advantages of solar energy are :

1. Heat water – for use in homes or buildings.


2. Heat spaces – inside greenhouses or homes.

Some disadvantages of solar energy are

1. The amount of sunlight that arrives at the earth's surface is not constant(weather conditions).


2. A large surface area is required to collect the energy at a useful rate.

Causes of Global Warming

In the past, people enjoyed the way of life .The temperature, oxygen and carbon dioxide were all stable, but as we can see today things have changed. Global warming is mainly what has caused an effect in our lives. It is causing a lot of problems and has changed the way of living. Some of the main causes of global warming are pollution, deforestation and burning of fossil fuels.

Some of the causes to global warming have effects to on our lives which has a risk factor.Firstly,pollution is one of the main causes of global warming. It damages the environment and ruins the life of our society including animals. Another cause is deforestation. Men cut down trees and take over land which makes the animals lose their habitats and this might make them extinct. Finally, the burning of fossil fuels around the world. This would have an effect on the ozone layer and would increase the levels of carbon dioxide which would lower the level of oxygen.

In conclusion, there are many ways we can stop global warming. This would benefit everyone and make our lives much easier. This would lead us living in a safe and healthy environment.

for more info: http://en.wikipedia.org/wiki/Global_warming