Global Warming
Introduction A Global Warning: Global Warming | The world is warming dangerously. It depends either on the natural causes or the artificial causes like human based greenhouse gases. This affects both the vegetation and zoological environment and also the human | life. Its effects are gradually increasing every year.The purposes of our project are:·To investigate the causes and the effects of global warming and to present the results of our survey.·To attract attention on the solution proposals about global warming and become more effective on this issue. | |
Causes of Global Warming | Weather conditions seen in a long period of time are called 'climate'. The world passed approximately 250 thousand million years of warm periodsand four major cold periods in the last billion years. | 50 million years ago, the world entered the fourth cold period. In this era which lasted 100 thousand years, there were warm periods that lasted 10 thousand years. In this century, we are living one of these warm periods. The heat decrease started 4 thousand years ago and the world should now tend to cool down, but it did not in the last 150 years.The main cause of global warming is the sun and the human based greenhouse effect. | |
Natural Causes Effect of the Sun | Paal Brekke - ESA scientist - declared that; scientists specialised on climate are researching Sun's circular movements and the change of its brightness. The Sun's magnetic field and the Sun wind that appears as | protons and electrons are creating a shield against the cosmic rays. The strength of the shield changes depending on the different activities of the Sun and the shield is unable to prevent the cosmic rayspermanently.The increase of these cosmic rays directly increases the number of clouds in the sky. It is changing the ratio of radiation created by the sun. The changing ratio is causing the global warming. | a | | | The ultraviolet is affecting the ozone layer and the whole
Causes of Global Warming | Weather conditions seen in a long period of time are called 'climate'. The world passed approximately 250 thousand million years of warm periodsand four major cold periods in the last billion years. | 50 million years ago, the world entered the fourth cold period. In this era which lasted 100 thousand years, there were warm periods that lasted 10 thousand years. In this century, we are living one of these warm periods. The heat decrease started 4 thousand years ago and the world should now tend to cool down, but it did not in the last 150 years.The main cause of global warming is the sun and the human based greenhouse effect. | |
Natural Causes Effect of the Sun | Paal Brekke - ESA scientist - declared that; scientists specialised on climate are researching Sun's circular movements and the change of its brightness. The Sun's magnetic field and the Sun wind that appears as | protons and electrons are creating a shield against the cosmic rays. The strength of the shield changes depending on the different activities of the Sun and the shield is unable to prevent the cosmic rayspermanently.The increase of these cosmic rays directly increases the number of clouds in the sky. It is changing the ratio of radiation created by the sun. The changing ratio is causing the global warming. | a | | | The ultraviolet is affecting the ozone layer and the whole