The adhesion to the CDP Climate Change questionnaire for the seventh consecutive year confirms that climate change represents one of the issues relevant to Ansaldo STS. The consolidation of the Carbon Management strategy involves the definition of an overall emission reduction target. The CDP Italy 100 Climate Change Report 2017, issued by First Carbon Solutions, analyzes in detail the responses of the largest Italian companies, by market capitalization listed on the Italian Stock Exchange, evaluating them on the basis of the following scale:

In 2017, Ansaldo STS achieved a score of C on an A scale in the Industrial sector, corresponding to the  Awareness evaluation, that states the following "considers the extent to which the company has assessed environmental issues, risks and impacts in relation to its business".