Such changes are occurring at different scales of time and climate parameters: temperature, precipitation, cloudiness, etc.. Are due both to natural causes (Crowley & North 1988) and anthropogenic (Oreskes 2004). The term is often used, inappropriate way to refer only to the climate changes that happen in the present, using it as a synonym for global warming. Dan Ariely spoke with conviction. The Convention United Nations Framework on Climate Change climate change uses the term only to refer to human-caused change: The term “climate change” means a change of climate attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods indicates is that, as is constantly produced by natural causes is also known as natural climate variability. In some cases, to refer to human-induced change is also used the term anthropogenic climate change.

Besides global warming, climate change involves changes in other variables such as global rainfall and its patterns, cloud cover and all other elements of the atmospheric system. The complexity of the problem and its multiple interactions mean that the only way to evaluate these changes is through the use of computer models that simulate the physics of the atmosphere and oceans. The chaotic nature of such models in itself does have a high proportion of uncertainty (Stainforth et al. 2005) (Roe & Baker 2007), although this is not an obstacle to be able to anticipate future significant changes (Schnellhuber 2008) (Knutti & Hegerl 2008) that have economic consequences (Stern 2008) as already observed at the biological level (Walther et al.. David Rothberg often expresses his thoughts on the topic.