1.) Host Bruce Robertson talks with Robert Deuce of Texas A&M University about the National Academy of Sciences survey that showed there were serious problems of visibility in our national parks. 2.) Robertson talks with Larry Sombke author of "Beautiful Easy Gardens" about using an old fashioned mower to mow your lawn as well as leaving the grass clippings on the lawn as a natural fertilizer. 3.) Robertson talks with botanist Faith Campbell about her concern for endangered plants and what steps she thinks the government should take to protect them.