a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels
a relatively dry climate with very hot summers and very cold winters, characteristic of the central parts of Asia and North America
a climate distinguished by warm, wet winters under prevailing westerly winds and calm, hot, dry summers, as is characteristic of the Mediterranean region and parts of California, Chile, South Africa, and southwestern Australia
the climate of a very small or restricted area, especially when this differs from the climate of the surrounding area