https://blogs.scientificamerican.com/observations/we-need-an-international-center-for-climate-modeling/

Earth's climate is changing, and we must decide what to do about it. Existing climate models all predict further warming, but for all we currently know, this trend could range from modest and manageable to an existential threat. In face of such large uncertainty it is difficult to agree on a course of action. For this reason, we propose the formation of an international initiative for high resolution climate models with the aim of providing more reliable long-term predictions.

Understanding whether climate change will be catastrophic for humanity or merely an inconvenience requires that the community takes a much more collaborative approach to climate model development than is currently the case. Simply put, we must make predictions as accurately as possible and can do better together than we can do alone. In this way, we may take inspiration from other large-scale science projects.