Western Hemisphere
geography
News •
Trump has a China problem in Venezuela: What to do with Beijing's debt and oil stakes
• Jan. 8, 2026, 8:00 PM ET (AP)
Senate pushes back on Trump's military threats against Venezuela with war powers vote
• Jan. 8, 2026, 6:43 PM ET (AP)
The Latest: Senate advances resolution to limit Trump’s ability to attack Venezuela
• Jan. 8, 2026, 4:41 PM ET (AP)
US seeks to assert its control over Venezuelan oil with tanker seizures and sales worldwide
• Jan. 8, 2026, 2:42 AM ET (AP)
The Latest: Trump exits 66 international organizations in latest retreat from global cooperation
• Jan. 7, 2026, 8:51 PM ET (AP)
Western Hemisphere, part of Earth comprising North and South America and the surrounding waters. Longitudes 20° W and 160° E are often considered its boundaries. Some geographers, however, define the Western Hemisphere as being the half of Earth that lies west of the Greenwich meridian (prime meridian, 0° longitude) continuing to the 180th meridian. According to this scheme, the Western Hemisphere includes not only North and South America but also portions of Africa, Europe, Antarctica, and Asia.
The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Jeff Wallenfeldt.