Which country have the highest CO2 emissions in 1960?
which country refers to countryname; the highest CO2 emissions refers to max(value where indicatorname = 'CO2 emissions (metric tons per capita)'); in 1960 refers to year = '1970'
SELECT CountryName FROM Indicators WHERE Year = 1960 AND IndicatorName = 'CO2 emissions (metric tons per capita)' ORDER BY Value DESC LIMIT 1