Climate neutrality refers to net zero emissions of greenhouse gases. The best known is undoubtedly CO2 and methane. CO2 is the largest, counting for about 80% of all greenhouse gas emissions in the EU. Besides CO2 and methane, there are many other lesser-known greenhouse gases that play a negative role in the greenhouse effect. However, the different types of greenhouse gases do not all have the same global warming potential, which is why their effect is also expressed in kg CO2 as this makes it easier to make comparisons.
The term CO2 neutral means that as much CO2 is absorbed as produced. Since all greenhouse gases are expressed in kg CO2, we can treat the terms Climate Neutral and Carbon Neutral as synonyms.
Source: Climate change: The greenhouse gases causing global warming | News | European Parliament. (s.d.). https://www.europarl.europa.eu/news/en/headlines/society/20230316STO776….