However, they will all acclimatize well before that date. Jost Kobusch of Germany continues to chip away at his ambitious long-term goal: a solo winter climb of Everest via the West Ridge.

Some teams acclimatize ahead of time in the Cordon del Plata range. They overnight at 4,000m and attempt the Cerro Plata (5,968m). However, these traditional protocols have changed completely with ...