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Greenhouse effect

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  • 1. The Greenhouse EffectWhat is a greenhouse? A greenhouse is a house made of glass. It has glass walls and a glass roof. People grow tomatoes and flowers and other plants in them, because greenhouse stays warm inside, even during winter. Sunlight shines in and warms the plants and air inside. But the glass traps the heat, so it can’t (can’t=no puede) escape. So during the daylight hours, it gets warmer and warmer inside a greenhouse, and stays pretty warm at night too. So, what is the Greenhouse Effect?Earths atmosphere does the same thing as thegreenhouse. Gases in the Earth’s atmosphere (watervapour, carbon dioxide ) do what the roof of agreenhouse does.During the day, the Sun shines through theatmosphere. Earths surface warms up in the sunlight.At night, Earths surface cools, releasing the heatback into the air. But some of the heat is trapped bythe greenhouse gases in the atmosphere.This phenomenon is called the greenhouse effect.So, the greenhouse effect makes Earth’s temperatureincrease. This sounds good but it really isn’t: thinkabout glaciers. If the temperature increases, glaciersmelt, and that makes the sea level rise.What causes the Greenhouse Effect? The Earths atmosphere naturally contains these greenhouse gases. Over the past decades their presence has increased, and this caused the temperature of the earth to increase. The following human activities are the main contributors to the increase of greenhouse gases: - burning gasoline to drive cars and trucks - burning oil, coal or wood to produce electricity - burning forests to clear land (deforestation)The Greenhouse Effect: think about it
  • 2. Human activities have an extremely strong impact over nature. It is possible to control theincrease of greenhouse gases, but we all have to change our habits.Is there something that you or your family can change in your daily life in order to respectNature and try to control the greenhouse effect? Give an example below.ENGLISH SPANISHGreenhouseGlassRoofSunlightTo shineTo growHeatTo trapTo increaseRise…………………………………………..…………………………………………..…………………………………………..…………………………………………..…………………………………………..…………………………………………..…………………………………………..…………………………………………..…………………………………………..