In the western Pacific, conifers thrive in colder areas while evergreen trees do better in warmer regions. There are two main zones with conifer forests: one cold and one moderate. In between, there's a zone with deciduous trees that have warm summers and cold winters. The cold conifer forests are found in high latitudes or altitudes, while the moderate ones are near the Pacific Ocean. The growth of conifers is favored by cool summers and mild winters, giving them an edge over broadleaf trees in these regions.