now bill mckibben new book, "eaarth". he will speak this evening he will speak about why it has an idiosyncratic spelling. a passionate incitement along with a practical vision for maintaining what resources we have left. then you will find right across the front of the book a wonderful statement from barbara kingsolver who has been here many times. read it, please. stay through to the end. whatever else you were planning to do next nothing could be m ore important. here is bill mckibben to tell us about his book. [applauding] >> well, thank you so much. it is a great pleasure always to be here. i am just in the first couple of days of wandering around the country talking about this book. so the main problem that i have been facing over and over again doing tv and radio is the question, how do you pronounce this odd -- idiosyncratic may have been a polite word, title, e-a-a-r-t-h. but i finally hit on, you have to kind of channel your inner schwarzenegger to make it work. it more or less gets across both the attitude and

here is bill mckibben. [applause] >> thank you so much it is a great pleasure to be here. just wondering around the country to talk about this book the main problem doing tv and radio hard you pronounced this? this titled "eaarth"? what i finally hit on you have to channel your inner schwarzenegger. [laughter] it gets across with the attitude the title is pretty simple. 20 years ago by teeing the first book about climate change it was full of warnings about what would happen if we did not make changes very fast. and much more quickly than we thought 20 years ago what we put into the atmosphere has become clear. it is not all of like of that we were born on to. has temperatures begin to rise and push it up about 1 degree backed we'll kick off early large-scale changes larger than we would have guessed. the atmosphere holds about 5% more moisture than it did. that is an enormous change of one of the most basic fiscal parameters of the planned and explains why we see around the world record rainfall or snowfall after another. and you got a slight taste of that this winter whe