Climate Change is a major environmental problem facing the globe today. It is decribed as a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. a change in global climate patterns apparent from the mid to late 20th century onwards, attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
It may be a change in the average weather conditions or a change in the distribution of weather events with respect to an average, for example, greater or fewer extreme weather events. Climate change may be limited to a specific region, or may occur across the whole Earth.
According to the National Oceanic and Atmospheric Administration (NOAA), there are seven indicators that are increasing and would be expected to increase in a warming world, they are: Humidity; Atmospheric Temperature; Sea surface temeperature; Sea level; Ocean Heat Content; Temperature over oceans, and; Temperature over land.
Three indicators are decreasing and would be expected to decrease even more, they are: Sea ice; Glaciers, and; Snow cover.