Complex sentence: To the southwest of the region, the climate in Australia is mostly desert or semi-arid, with the southern coastal corners having a temperate climate, such as oceanic and humid subtropical climate in the east coast and Mediterranean climate in the west.
Split into simpler sentences: To the southwest of the region, the climate in Australia is mostly desert or semi-arid. Australia's southern coastal corners, though, have a temperate climate, such as oceanic and humid subtropical climate in the east coast and Mediterranean climate in the west.