1. a line or plane that touches but does not intersect a curve or surface at a point so that it is closer to the curve or surface in the vicinity of the point than any other line or plane drawn through the point. 2.
Written by YeSeul Kim, Erika Granger, Katie Puckett, Cankutan Hasar, and Leif Francel. Definition. Climate Change. Climate change is any substantial change in Earthâs climate that lasts for an extended period of time. Global warming refers to climate change that causes an increase in the average temperature of the lower atmosphere. Global warming can have many different causes, but it is most commonly associated with human interference, specifically the release of excessive amounts of greenhouse gases. (EPA, 2006)
Global warming, or climate change, is a subject that shows no sign of cooling down. Here's the lowdown on why it's happening, what's causing it, and how it might change the planet.Printer Friendly.Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades, according to NASA's Goddard Institute for Space Studies.  The rate of warming is increasing.