People in groups may contain two types of diversity, instrumental preferences and value preferences.
Different preferences for what people value is a problem for political negotiation. This requires a lot of work. The groups in this class have already decided that increased biodiversity is important, and it's just a matter of addressing how to promote more biodiversity within the parks and greenspaces that we have.
Instrumental preference diversity is when people, who agree that addressing a problem is valuable, bring different ideas about how to solve that problem to the table. This is extremely valuable and can be accomodated with some simiple group processes skills (see below).
According to Page (2007) in his book "The Difference", diverse functional groups will beat a single very smart individual almost all the time. The reason is the the wealth of experience and different approaches in a small group of good people far exceeds the experience and know-how of a single brilliant person. The key is to be able to bring out that benefit of the group.
The creativity and skills repertoire that is available in groups is crucial in difficult situations, such as the "wicked" problems we discussed in class.