3. February 1985 was the last time global surface temperatures fell below the 20th-century average for a given month, meaning that no one younger than 30 has ever lived through a below-average month. The last full year that was colder than the 20th-century average was 1976.
5. Salary three years after graduation and salary increase are the main criteria, each accounting for 20 per cent of the ranking’s weight. Most schools in the top 25 score well on at least one of these criteria. The top 10 schools would mostly also rank in the first 10 if salaries and their increases were excluded. The only exceptions are Nanyang Business School and China Europe International Business School, both underperforming in the doctoral and research ranks.