Esther Anaya-Boig

Analysis of 1,500 climate policies implemented in 41 countries over the last two decades - between 1998 and 2022 - shows that a small proportion - 63 of them - achieved a significant reduction in carbon dioxide emissions. The study, published in Science, indicates that a significant decrease in these emissions was recorded in the transport sector in Spain. According to the authors, the combination of several policy instruments is often more effective than the use of single measures.

A study published in the journal Communications Earth & Environment (from Nature Research) estimates that a reduction of 686 million tonnes of carbon emissions could be achieved each year if the world followed a cycling pattern similar to that of the Netherlands (2.6 kilometres per day). This is about 20 % of the carbon emissions produced by the global passenger car fleet in 2015.