the building, what you said. >> wait, we didn't say anything like that. >> sean: they are going to raise the rent on peoples of the people are going to pay for it. >> they are going to demand of building owners, build green, stop the greenhouse gas emissions that are killing all of us. i know you care about your children, grandchildren. i care about my children, grandchildren. >> sean: of course, i care about everyone in the city. >> we cannot go on this way but we want a green new deal and what are the key things is buildings don't emit what they used to. that means a lot those building owners are doing very well, they can handle the front cost and make it back. because retrofitting -- >> sean: you say that like people have unlimited resources. some people i know own apartments have lost money on apartments, they've lost money in buildings. >> but here's the option. if we don't do something, this earth is in great danger. >> sean: how many years do we have left? how dangerous is it?