While water vapor is a necessary gas phase in the atmosphere for the hydrologic cycle, it is a natural greenhouse gas. Water vapor
is also caused by anthropogenic sources. Carbon dioxide, methane, and nitrous oxides are greenhouse gases that are directly
caused by anthropogenic sources. Water vapor is caused by indirect sources. It is not released directly into the air due to
industrialization. It is part of a positive feedback system. Explain the relationship between water vapor and the warming of the