The Silestone countertop I purchased is actually a composite of natural and man-made materials as opposed to granite which is strictly a natural stone product.
A greenhouse gas (GHG) is any gas in the atmosphere that absorbs and emits radiation in the thermal infrared range. These are the fundamental cause of the greenhouse effect, which results in increased temperatures on Earth. The greenhouse effect occurs as the gases reach Earthâs surface. As the short wave energy heats the surface, some of the longer wave energy radiates back into the atmosphere and back into space. Greenhouse gases absorb some of the energy and trap it in the lower atmosphere.
Summary: 1  The Earth is heated by the flux of energy it receives from the Sun, and cools down by emitting infrared radiation to space. 2  The rates of incoming and outgoing energy have to be in balance if the Earth temperature is to remain constant. The eccentricity of Earth's orbit causes the distance to the Sun to slightly change (being largest in July and shortest in January). The seasons, however, are caused by the tilt of the axis of rotation of the Earth.