alt Hacker NewsCO2 emissions will decrease in the next decades but mostly because of demographics. People get older and tend to pollute less, growth is slower. It happened to Europe and it'll happen to China sooner than we think when we look at their pyramid of age: https://en.wikipedia.org/wiki/Demographics_of_China
I think we shouldn't mix (1) negative events in the world which impact CO2 emissions (covid, Ukraine war, Iran war etc.), (2) with "normal" events such as population decline in polluting countries, (3) with an actual coordinated and effective action against global warming.
(1) and (2) can have a large impact on CO2 emissions. (3) is more difficult to notice.
Replies
There are other reasons. Solar and batteries now have become so cheap that there is financial incentive to use them. The war on Iran has shown the volatility of fossil fuels, adding political and strategic incentive. More and more energy use is electrified (transportation, heating), which further reduces primary energy usage.
All that builds a momentum that actually makes me somewhat optimistic that we have at least reached peak emissions.
China is doing real things to move their transportation to battery electric too, including big trucks. They have infrastructure to swap several hundred kwh battery packs, the truck can be back on the road in about 5 minutes.
It’s not coordinated action, it’s primarily massive renewable and nuclear buildouts in China, which will hopefully be followed by similar buildouts all throughout Asia.
The world population is still increasing in 2027. And the total population is pretty much irrelevant anyways. Rich people emit so much more CO2 than poor people that they number of poor people is just a rounding error. The rich are getting richer and poor people are continuing to join the middle class. Carbon intensive activities such as flying are increasing at a rapid rate. People are flying more in 2026 despite the cost of fuel going up.