It's called climate change climate modification regarding climate record to a global or regional scale. Such changes occur at very different time scales and on all meteorological parameters: temperature, air pressure, precipitation, cloudiness, etc.. In theory, are due to both natural causes (Crowley and North, 1988) and anthropogenic (Oreskes, 2004).The term is often used inappropriately so, to refer only to the climate changes that happen in the present, using it as synonymous with global warming. The Convention United Nations Framework on Climate Change uses the term "climate change" only to refer to human-caused change: