Chris Duffy

But I would not say that having nine college guys living in your property is going to lead to sparkling hygiene, should we say.

So when we moved out of this house, the landlord kept most of our security deposit.

And we were outraged by that.

I mean, come on, we weren't that bad.

But the landlord insisted that he needed it to pay for professional cleaners.

And worse, when he took our money, he also gave us this full on guilt trip.

He said, and I quote, I thought you were good guys.

You seem to care.

Now, I would like to think that I have become much better at being a responsible caretaker of the places that I call home these days.

But when it comes to all of us as a species, we are not doing so great for planet Earth.

We are on track to lose our full security deposit.

Today's guest, Bill McKibben, he has spent decades trying to teach humanity how to be better tenants of this planet.

His first book, The End of Nature, was published in 1989, and since then he has written over a dozen more, becoming one of the most prominent environmentalists around.

Bill is currently a leader of 350.org, an environmental advocacy group that he co-founded.

Their goal is to end the use of fossil fuels and transition to renewable energy by building a global grassroots movement.

Bill is also the founder and a leader of Third Act, which mobilizes Americans over the age of 60 to work towards climate and racial justice.

And as you can tell, just by those two organizations, there is a lot to talk about with Bill.

He is working overtime on being a better human.

And despite Bill's very busy schedule and important work that he does, he always makes time to remember what it is that he is fighting for, the profound beauty and majesty of this planet.

Bill lives in Vermont, where he spoke with me remotely.