https://www.merck.com/about/views-and-positions/public-policy-position-statements.html https://www.merck.com/about/views-and-positions/public-policy-position-statements.html https://www.merck.com/about/views-and-positions/public-policy-position-statements.html https://www.merck.com/about/views-and-positions/public-policy-position-statements.html https://www.merck.com/about/views-and-positions/public-policy-position-statements.html https://www.cdp.net/en https://www.cdp.net/en https://www.cdp.net/en https://www.msdresponsibility.com/environmental-sustainability/product-stewardship/green-sustainable-science/ https://www.msdresponsibility.com/environmental-sustainability/climate-change-energy-use/ Performance Our NOx emissions increased slightly from due to the need to burn more fuel during the cold winter months and the use of emergency generators at our Puerto Rico facility during an extended power outage caused by Hurricane Maria.