The positive impact of greenhouse

Actually not bad greenhouse, even with the existence of the greenhouse effect the Earth, we could stay warm, even allowing us to survive until now.

When the light of the sun in Earth's atmosphere and surface, approximately 70% of that energy remained on earth, is absorbed by land, sea, plants sera of other objects. The remaining 30% is reflected back through the clouds, rain and other reflective surfaces. But 70% is hot does not always exist on earth, because if so then we are when the earth will become a ball of "fire". Objects - objects around the planet that absorbs sunlight often re-absorbed heat radiation. Most of the heat into space, stay there and will be reflected back to the bottom surface of the earth when the related substances in the atmosphere, like carbon dioxide, methane and water vapor. Heat is what makes the surface of the earth to keep warm than in outer space, because more energy is absorbed than reflected back. Genesis is called the greenhouse effect (greenhouse effect)