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.
(Click on bullets above to step through the decades.) According to an ongoing temperature analysis conducted by scientists at NASAâs Goddard Institute for Space Studies (GISS), the average global temperature on Earth has increased by about 0.8Â° Celsius (1.4Â° Fahrenheit) since 1880. Two-thirds of the warming has occurred since 1975, at a rate of roughly 0.15-0.20Â°C per decade.