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.