I think scientists prefer to use the term "climate change," which the UN Intergovernmental Panel on Climate Change defines as "a statistically significant variation in either the mean state of the climate or in its variability, persisting for an extended period (typically decades or longer). Climate change may be due to natural internal processes or external forcings, or to persistent anthropogenic changes in the composition of the atmosphere or in land use." While it often leads to warmer temperatures, climate change can also result in higher variability in weather events - like snow in spring in warm places.

Such a long, long time to be gone, and a short time to be there.