In conclusion

The UN sustainability goals are aimed at the wicked problems facing our world of which change is required and as such leadership is needed because leadership is about coping with change and influencing people. 

 In looking at the leadership of Al Gore on goal 13 – climate change within the confines of his use of social media, appropriate leadership theories of transformational leadership, authentic leadership, and LMX theory were used. 

All three leadership theories identified weakness in his leadership effectiveness because of his lack of engagement with followers and the use of social media as a support function only. Suggestions aimed at addressing these weaknesses via each of the leadership theories have been made with LMX theory given its focus on the dyadic relationship between leader and followers also being used to help support the other two leadership approaches.