What is the greenhouse effect - Global Ideas

Our climate is changing and temperatures in general are increasing on the planet sea levels are rising and the ice is melting at the North and South poles one reason for this is the greenhouse effect But what is the greenhouse effect? A greenhouse is normally something useful it helps us to grow things like tomatoes out of season that's because it's nice and warm inside a greenhouse The sunlight enters and visible light penetrates the glass it is partly absorbed by the plants in the soil and partly reflected on the outside as invisible heat radiation as a result temperatures rise inside the greenhouse The planet Earth obtains warmth in a similar fashion which is fortunate because otherwise we could not survive Without the natural greenhouse effect temperatures on our planet would be around minus 15 degrees Celsius and not the average 15 degrees Celsius above freezing sunlight penetrates the gas layer of the atmosphere it's partly absorbed and partly reflected just like in a greenhouse small particles in the air ensure that a percentage of the reflected radiation is sent back to earth However humans cause a lot of pollution by producing large amounts of carbon dioxide, methane and nitrous oxide the small particles increase in number and the result is just like a greenhouse with the glasses too thick so an increased amount of radiation is sent back to earth and the heat is unable to escape causing temperatures to rise constantly on our planet