Statement:
Portugal produces less carbon dioxide than Singapore

In the Carbon dioxide emissions rating Portugal holds position #57 ²⁰¹⁹ out of 201 and Singapore is #28 out of 201 ²⁰¹⁹.
Position of Portugal is better than position of Singapore.

Referencies:

1. Carbon dioxide emissions ²⁰¹⁹ by CIA

   The countries in the rating sorted by 'Tons of CO2' in descending order.

   Portugal	'Tons of CO2' value is	50,370,000
   Singapore	'Tons of CO2' value is	238,983,000