change, battling these types of things is one of the key areas the white house has been saying all along that the president can address in his so-called year of action. >> they say he can do this unilaterally through executive action without congressional authorization or approval. he has done this on several earlier occasions. he now says that in 2015, 2016, you put greater standards on fuel efficiency on these trucks and these school buses and all sorts of other larger vehicles, you are going to save in terms of gas and greenhouse gas emissions. that's going to be a significant advantage. he says he can do it right away. he is going to make the announcement at a safeway distribution center right outside washington, d.c. safe way has been involved in more fuel-efficient trucks. that's why he decided to make the announcement out there. >> athena, let's bring you into the conversation as you heard wolf say, plans to do this without congress in this year of action, taking action on things