Change from previous year's score: +3

Review: 18/22 points. Climate Counts has found that Merck & Co. measures its companywide impact on global warming annually since at least 2004.

Reduce: 36/56 points. Climate Counts has found that Merck & Co. has established clear goals to reduce its energy use, and has reduced its impact on global warming (i.e., its greenhouse gas emissions or climate footprint). The company also encourages energy conservation by others.

Policy Stance: 5/10 points. Merck & Co. has made minimal information available that it supports policy that would lead to mandatory corporate action on climate change.

Report: 8/12 points. Merck & Co. actively makes information public on its companywide efforts to address global warming.