Along with other greenhouse gases, such as nitrous oxide and methane, CO is important in sustaining a habitable temperature for the planet: if there were absolutely no GHGs, our planet would simply be too cold.
It has been estimated that without these gases, the average surface temperature of the Earth would be about -18 degrees celsius.
Our articles and data visualizations rely on work from many different people and organizations.
When citing this entry, please also cite the underlying data sources.
Emissions from a number of growing economies have been increasing rapidly over the last few decades.We see that over the last few decades, temperatures have risen sharply at the global level — to approximately 0.8 degrees celsius higher than our 1961-1990 baseline.When extended back to 1850, we see that temperatures then were a further 0.4 degrees colder than they were in our 1961-1990 baseline.Note that a number of nations that are already top emitters are likely to continue to increase emissions as they undergo development.In contrast to CO emissions growth in low to middle income economies, trends across many high income nations have stabilized, and in several cases decreased in recent decades.