ABSTRACT
The general definition of climate change means a variation in the statistical properties of the climate system when considered for a long period of time, regardless of cause [1]. Sometimes, the term climate change can also be used to refer to the climate change caused by human activity, as opposed to changes in climate that may have resulted as part of Earth’s natural processes [2]. NASA satellites have verified some of the characteristics of the climate change on Earth that have largely supported the theories and data that aid scientists in determining the big picture about our planet and its climate on a global scale. Going through the climate data collected over many years, a clear signal of a changing climate is noticed. The graph shown in Figure 13.1 is based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements. It provides evidence that atmospheric CO2 has increased since the industrial revolution.
