Global Warming and the Green House effect.

The Earth is warmed during the day by incoming rays from the sun. The Earth loses heat at night through out going infrared radiation. On cloudy nights temperatures do not drop as low on clear nights. This is because the clouds act as a blanket and trap some heat.

 The green house gasses also act as a blanket, as they prevent the heat to leave at night in to the solar system. This blanket allows heat to enter but only allows a little bit to leave. This layer of gasses is known as the o-zone layer.

Causes of Global Warming                                                                                                                                                                                                                                                          

The key contributors to global warming are carbon dioxide and other pollutants released in to the atmosphere.

• Carbon dioxide is the main pollutant released into the atmosphere it comes from road vehicles and by burning fossil fuels in power stations, in factories and in the home.
• CFCs (chlorofluorocarbons) from aerosols, air-conditioners, foam packaging and refrigerators. These are the most damaging of the green house gasses.
• Methane is released from decaying organic matter such as peat bogs, swamps and waste dumps.
• Nitrous oxide is given out from car exhausts, power stations and agricultural fertilisers.

When do you send green house gasses in to the air?

What can happen?

• Climate change may affect people’s health. For example, heat stress and other heat related problems are caused by high temperatures and high humidity. Heat stress can be a very serious problem.
• Climate change may adjust the world’s habitats and ecosystems. Animals may not be able to live in extremely hot temperatures all the time and habitats may be lost to the animals that do not live in the sea but live near the beach.
• Global warming may make the sea level to rise. This is because warmer weather makes snow caps melt in the Polar Regions, and if these melt they would add more water to the sea. Warmer temperatures make water expand.
• One thing that is good that the colder parts of the world may now be able to crow crops as before it was to cold and the climate was not right for the crop to be grown.

What we should do in the future?

• Save electricity, when we use electricity we help put green house gasses in to the air by turning of lights and televisions off after use would be a great help.

• You can save energy by sometimes walking, riding a bike or taking the bus.
• If we plant more trees and cut down less would be help. This is because trees absorb carbon dioxide and carbon dioxide is the main green house gas.