"I know they are all environmentalists. I heard a lot of my speeches recycled"

This quote by Jesse Jackson is most likely referring to the people he is talking to, or individuals he is resolving. He is indicating that they are all environmentalists, which he has heard a great deal of his speeches recycled. This might suggest that individuals he is speaking to are familiar with his speeches, and have actually heard them in the past. It might also indicate that they are recycling his concepts, and using them to enhance their own ecological causes. This quote could likewise be translated as a suggestion to individuals he is talking to that they should bear in mind the environment, which they ought to be taking steps to secure it.