This article discusses the issue of "green bonds". "Green" bonds are relevant and attractive for investors today. The features of "green" bonds are presented and the development practice in Europe is studied. The figures show the number of climate–aligned and green bonds worldwide in 2018 by region, the distribution of green bond issuance in Europe in 2019 by type of regional issuers, and the volume of green bond issuance in selected European countries in the first half of 2020.