This issue is for discussion of the map viewer capability "Reproject map tile data into a new projection or globe view".

Globes work around some of the limitations of planar map projections, by portraying spatial information on a rendered spheroid. This technique is becoming commonplace, and serves Web mapping quite well in that it allows specific areas of the Earth to be portrayed without necessarily developing custom projections for them, especially polar areas.

Furthermore, globes are an appropriate abstraction for rendering and perhaps more importantly, analysis of global phenomena such as climate change. As such it would be excellent to enable globes as a "projection" within the proposed solution(s).