What are the principles of green bonds (good practices, actors, market) and are they really useful?

What is social and environmental impact investing? According to what criteria can an investment fund claim to make impact investing?
Author: Françoise Caclin.

Options: definition, use, trading, calculation of value
Author: Françoise Caclin.

EU Regulation 2020/852 on determining whether an economic activity is sustainable
Author: Françoise Caclin.