30 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, Russia, 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 24 001 individuals, composed of 30 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, city size 500 or 1,000 individuals interrogated in each country.

Fieldwork executed by Internet (PC, tablet or mobile phone) between 30th August and 26th September 2022.


  Sample   Sample   Sample
Australia 1,000 Belgium 1,000 Brazil 1,000
Canada 1,000 Chile 1,000 China 1,000
Colombia 500 Egypt 500 France 1,000
Germany 1,000 India 1,000 Indonesia 500
Italy 1,000 Japan 1,000 Mexico 500
Morocco 500 Nigeria 500 Norway 500
Poland 500 Russia 1,000 Singapore 500
Spain 1,000 Saudi Arabia 500 South Africa 1,000
South Korea 1,000 Sweden 500 Turkey 1,001
United Arab Emirates 500 United Kingdom 1,000 United States 1,000