in ways that promote biodiversity. >> biodiverse city often argued to be important for the world's human populations because all of the medicinal plants and uses that we can put to it and fiber that it gives us and food that it gives us. while these are vital and important and worth literally hundreds of billions of dollars, the part that we also have to be able to communicate is the more spiritual sense of how important it is that we get to live side by side with all of these forms that have three billion years of history behind them and how tragic it would be not commercially and not in a utilitarian way but an emotio l emotional, psychological, spiritual way if we watch them one by one disappear. >> this is sort of a merger between art and science and advocacy in a funny way getting people to wake unand realize

what is going on -- wake up and realize what is going on. so it is a memborial trying to get us to interpret history and look to the past. they have always been about lacking at the past so we proceed forward and maybe don't commit the same mistakes.

i'm starving. what's for breakfast? guten tag! kids: johannes brahms?! i bring you arts-enriched raisin brahms, fortified with increased test scores and creative problem solving skills. it's good! ...and good for you. bobby? suzy? don't worry. that's just the power of the arts. announcer: feed your kids the arts. for ten simple ways to learn how, visit americansforthearts.org

i'm robert chief and i'm the park's supervisor in the parks in the sunset district. i've been working here for 3 years. we are 60-70 street below street level. the 64 acre park. the park is divided into 2 sections we are in the stern area. when you get over to pine lake meadow and pine lake, pine lake is considered a natural area. in 1847, the green family came out here, back then this was kind of an empty canyon and sand

dun area. they claimed this property. in 1892. george green who's a second generation built the truckdaro club house. there was a hotel then. it was said this was the place to go if you were weary of the dirty city and the police. there were a couple of gun fights the front door has bullet holes. i don't ever repair them. 1931 stig mond bought the property from the green family. she donated it to the city of san francisco and had a specification, i'm giving it to the city that will be used forever for the enjoyment forever of the people of the city of san francisco. it has ever since. every summer the stern grove association in san francisco rec and