(6)The prudent person principle laid down in Article 132 of Directive 2009/138/EC requires that insurance and reinsurance undertakings only invest in assets the risks of which they can identify, measure, monitor, manage, control and report properly. In order to ensure that climate and environmental risks are effectively managed by insurance and reinsurance undertakings, the implementation of the prudent person principle should take into account sustainability risks and insurance and reinsurance undertakings should reflect in their investment process the sustainability preferences of their customers as taken into account in the product approval process.