Many corporations are recognizing the impact of climate change on business as usual, and in response are disclosing and working to mitigate greenhouse-gas emissions, says a new report from the nonprofit Carbon Disclosure Project. The group’s fifth annual survey of the world’s 500 largest companies boasted a 75 percent response rate; of those, 80 percent of businesses found climate change to present a commercial risk, 82 percent recognized increased commercial opportunities, and 76 percent said they had implemented programs to reduce greenhouse-gas emissions. While the responses aren’t independently verified and should be taken with a grain of salt, the numbers are still encouraging, as only 48 percent of companies responding to last year’s survey reported mitigating emissions. Unfortunately, the glut of voluntary information seems yet to play a role in investors’ decisions on where to put their money.