with theitzer is heritage foundation and dan weiss is here to answer your questions. we will start with andrew from massachusetts on our line for democrats. good morning. iller: good morning, understand the science behind climate change and i think it's a very important issue not just economically speaking to the business community but to the world in general. -- how is climate change going to impact agriculture and the ability to feed the peoples of the world? that's all i have to say. guest: the national climate assessment which is some of the nation's best scientists put this together and it was released back in may. you have a copy of it right there. it suggests that climate change could have very disruptive effects on the u.s. agricultural that wouldreas receive a certain level of precipitation would receive less in the crops therefore would face hotter temperatures. we are likely to see business as usual. it could double the number of days across the country that are 95 degrees or hotter which could have a huge impact on agriculture. already we are seeing impact