The map categorizes the countries (that have provided numbers) by emissions, to provide quick insights into which countries reported having the highest CO2 emissions (total from 2018-2020). However, while looking at the map, it’s important to keep in mind factors such as organizations reporting in a country (higher the number, higher the reported emissions) and consistency of reporting (whether a country reported in all years).
Singapore’s upward trajectory in terms of reported GHG emissions We can see that as of 2020, Singapore reported having the highest CO2 emissions, followed by the U.S and Indonesia. It is worth noting though that the number of participating cities in the U.S have gone up from 21 in 2019 to 144 in 2020. However, Singapore’s reported emissions have been on a consistently upward trend. Recommended Investigation: Why are Singapore’s CO2 Emissions Rising?
Canada’s falling GHG emissions Another interesting observation is that Canada’s reported emissions have gone down significantly from 2019 although the number of participating cities have gone up from 3 to 25. An explanation for this (and something worth looking into further) maybe the widespread implementation of carbon taxes in certain provinces in Canada, with prices rising by $10CAD per metric ton per year. Recommended Investigation:Exploring potential relationship between rising Carbon Taxes and falling emissions.
While it seems like that there is almost no correlation between the two,it is important to note that countries that responded to the climate hazards question above, did not necessarily also report their CO2 emissions.
In this regard, it is also important to note that the consequences of CO2 emissions can often be transnational, and thus location may not be the best parameter for measuring linkages between the two.