Brichebor Peak (Antarctica) of Mount Slaughter (3444 m). US mapping in 1961, 1988 and 2007. Brichebor Peak (Antarctica) Brichebor Peak ( \'vr&h 'bri-che-bor\) is the peak rising to 2900 m in Vinson Massif, Sentinel Range in Ellsworth Mountains, Antarctica, situated at the end of a side ridge descending southwestwards from Príncipe de Asturias Peak (4680 m). It surmounts Tulaczyk Glacier to the southeast and Cairns Glacier to the northwest. The peak is named after Brichebor Peak in Rila Mountain, Southwestern Bulgaria. Brichebor Peak is located at , which is 8.17 km south of Knutzen Peak (3373 m), 6.35 km southwest of Silverstein Peak
Antarctica warming up; particularly strong warming has been noted on the Antarctic Peninsula. A study by Eric Steig published in 2009 noted for the first time that the continent-wide average surface temperature trend of Antarctica is slightly positive at >0.05 °C (0.09 °F) per decade from 1957 to 2006. This study also noted that West Antarctica has warmed by more than 0.1 °C (0.2 °F) per decade in the last 50 years, and this warming is strongest in winter and spring. This is partly offset by autumn cooling in East Antarctica. There is evidence from one study that Antarctica is warming