Obs'COP 23, the methodology

29 countries questioned* in all 5 continents, representing 2/3 of the world’s population

Survey conducted in Australia, Belgium, Brazil, Canada, Chile, China, Colombia, Egypt, France, Germany, India, Indonesia, Italy, Japan, Mexico, Morocco, Nigeria, Norway, Poland, Saudi Arabia, Singapore, South Africa, South Korea, Spain, Sweden, Turkey, United Arab Emirates, United Kingdom, USA.

Selection of countries mainly based on their CO₂ emissions per year, but also based on their geographic location or exemplariness in fighting climate change.

Total sample of 23 433 individuals, composed of 29 representative samples of the population aged 16 and over in each country.

The representativeness was insured using a quota method. Quotas used : gender, age, region, occupation, social category or status, city size.

 500 or 1,000 individuals interrogated in each country.

Fieldwork executed by Internet (PC, tablet or mobile phone) between 16th August and 2nd October 2023.

  Sample   Sample   Sample
Australia 1,000 Belgium 1,050 Brazil 1,050
Canada 1,002 Chile 1,049 China 1,049
Colombia 524 Egypt 500 France 1,000
Germany 1,000 India 1,031 Indonesia 500
Italy 1,000 Japan 1,000 Mexico 525
Morocco 510 Nigeria 509 Norway 501
Poland 500 Singapore 500 Spain 1,000
Saudi Arabia 500 South Africa 1,046 South Korea 1,050
Sweden 500 Turkey 1,012 United Arab Emirates 523
United Kingdom 1,000 United States 1,000    

* Due to the geopolitical context, results for Russia are not available this year.