Since the early 1980s, geologists have recognized that the CLIMAP results do not square with evidence on land, which records dramatic changes in the tropics.
CLIMAP researchers in the past have stood by their results, arguing that the land data don't reveal much about ocean temperatures because they come from high-altitude sites and therefore may not reveal what happened closer to sea level.
On CLIMAP, Guilderson contends that the older study may have missed changes in the tropics because two of the dominant plankton species in the region can withstand big temperature changes and could have continued to inhabit the tropics even if the ocean cooled significantly.
The ADB will finance climate risk assessments at both the regional and national level through such programs as the Climate Change Adaptation Program for the Pacific (CLIMAP
), which will review climate-change risks (e.g., sea level risk) while producing guidelines for development planners on how to climate-proof coastal infrastructure.