Atmosphere of Earth surface. The refractive index of air depends on temperature, giving rise to refraction effects when the temperature gradient is large. An example of such effects is the mirage. "Atmospheric circulation" is the large-scale movement of air through the troposphere, and the means (with ocean circulation) by which heat is distributed around Earth. The large-scale structure of the atmospheric circulation varies from year to year, but the basic structure remains fairly constant because it is determined by Earth's rotation rate and the difference in solar radiation between the equator and poles. The first atmosphere consisted of gases in the solar nebula,
The End Is Where We Begin (album) The End Is Where We Begin (album) The End Is Where We Begin is the sixth studio album by Canadian rock band Thousand Foot Krutch. It was released on April 17, 2012 in the United States, and was released in Canada on May 8, 2012. Vocalist Trevor McNevan has stated "the record is some of the heaviest stuff we've done and some of the lightest". On November 29, 2011 they announced that they would be leaving Tooth & Nail Records to release the album independently. The band has set up a webpage offering various fans pre-release packages in exchange for