John Dumelo is a prominent Ghanaian actor, farmer, and entrepreneur. An alumnus of Kwame Nkrumah University of Science and Technology and Achimota School, he is recognized for his diverse

John Dumelo is a prominent Ghanaian actor, farmer, and entrepreneur. An alumnus of Kwame Nkrumah University of Science and Technology and Achimota School, he is recognized for his diverse contributions.

Beyond his acclaimed acting career, Dumelo launched the J. Melo clothing line in 2012, showcasing his entrepreneurial spirit.

He delivered a TEDx talk on the critical topic of growing agriculture in Africa to feed the world. Learn more about TEDx events here.

John Fullerton, founder of the Capital Institute, argues that

John Fullerton, founder of the Capital Institute, argues that climate change is a symptom of a "full-world economy."

He expressed this view in an April 2010 interview with Daniel Erasmus at King's College.

In a recent interview, John Elkington discusses critical topics including raw materials, rare-earth metals, and conflict minerals.

Elkington is co-founder and Executive Chairman of Volans,

In a recent interview, John Elkington discusses critical topics including raw materials, rare-earth metals, and conflict minerals.

Elkington is co-founder and Executive Chairman of Volans, and co-founder and Non-Executive Director at SustainAbility. He blogs at johnelkington.com/journal and tweets @volandia. Additional insights can be found at kajembren.com.

Oceanographer John Delaney is leading a team to construct an underwater network of high-definition cameras and sensors. This

Oceanographer John Delaney is leading a team to construct an underwater network of high-definition cameras and sensors. This project aims to transform our oceans into a global interactive lab, generating an abundance of data about the world below.

Delaney, a Professor of Oceanography at the University of Washington, is also Principal Investigator and Director of the Regional Scale Nodes Program, holding the Jerome M. Paros Endowed Chair in Sensor Networks. His innovative work is featured on TED.com.

Shifting the global energy system away from coal is imperative. Those with control and access to capital bear the greatest responsibility for this critical challenge.