Fr. Martin also appeared on National Public Radio to explain the new social sins. Click here to get to his segment.
From the interview:

“I think it’s to remind people that sins are not just individual,” Fr. Martin says referring to the Catholic church’s old seven deadly sins — lust, gluttony, greed, sloth, wrath, envy and pride. “There’s also social sins .. .sins that affect the community at large and sins that an institution can engage in.”
The New Mortal Sins
1.) genetic modification
2.) carrying out experiments on humans
3.) polluting the environment
4.) causing social injustice
5.) causing poverty
6.) becoming obscenely wealthy
7.) taking drugs