twodegree

Twodegree is an ambiguous term that can refer to angular measurement, a climate policy target, or a modern brand. In geometry and geography, a degree is a unit of angular measure. Two degrees describe a small angular separation. On Earth, one degree of latitude is approximately 111.32 kilometers everywhere, so two degrees of latitude cover about 222 kilometers. The length of one degree of longitude varies by latitude, being equal to 111.32 km at the equator and shrinking to zero at the poles; thus two degrees of longitude at a given latitude equates to roughly 222 × cos(latitude) kilometers. The phrase is common in mapping, navigation, and geodesy.

In climate discourse, the "two-degree target" or "two-degree warming" refers to limiting global average temperature rise to about 2°C above pre-industrial levels. This threshold is used in models to assess risk and guide policy, though many scientists argue that even 2°C entails substantial risks.

As a brand or project name, "twodegree" (often styled with capital letters or as "TwoDegree") may be used by startups, research groups, or digital services. When encountered, the specific meaning depends on the organization behind it.

Etymology: degree derives from the Latin gradus; two-degree simply combines the numeral two with the unit name.