The modern science of geology is based upon our increasingly improving capacity for observation, the application of the scientific method and established ideas culled from generations of geological research. <ref>http://abcworld.net/Earth.html</ref> Today, satellites are capable of detecting the movement of the land even if that movement is measured in inches per year. <ref>http://www.cliffshade.com/colorado/tectonics.htm</ref> Applying these varied and complicated sciences with careful observations and math, scientists who believe the earth is billions of years old assert that one can calculate and [[extrapolation|extrapolate]] a presumed age of the Earth. The consensus is approximately 4.6 billion years. | The modern science of geology is based upon our increasingly improving capacity for observation, the application of the scientific method and established ideas culled from generations of geological research. <ref>http://abcworld.net/Earth.html</ref> Today, satellites are capable of detecting the movement of the land even if that movement is measured in inches per year. <ref>http://www.cliffshade.com/colorado/tectonics.htm</ref> Applying these varied and complicated sciences with careful observations and math, scientists who believe the earth is billions of years old assert that one can calculate and [[extrapolation|extrapolate]] a presumed age of the Earth. The consensus is approximately 4.6 billion years. |