There are huge differences in global CO2 emissions

Wealthier people tend to have a higher carbon footprint. They use more energy, and since much of it still comes from fossil fuels, they have much higher carbon emissions than those with lower incomes. This inequality is clear when we examine the contributions of countries by income level. The graph above shows the share of the World Bank's four income groups in global emissions of carbon dioxide (CO ₂ ) and the population using data from the Global Carbon Project. The groups are based on the average income at the country level - they do not take into account differences between people's incomes in individual countries.

High-income countries contribute more than twice their share of the global population: they are home to only 15 % of people but emit 34 % of global emissions. Low-income countries are home to 9 % of the world's population, but emit less than 1 % of total emissions. This difference increases by several percentage points when we take into account the emissions contained in traded goods. (More on ourworldindata.org)