That gave Okoya food for thought and after some initial research, he decided to launch the Queens of Africa black dolls, each one representing different tribes in the continent.
Greenhouse gases apart, experts say, emissions from India's power plants, factories and transportation have led to the accumulation of aerosols and black soot in the skies of the Indian sub-continent.
Trevor is a born and raised New Yorker, an avid fisherman who caught a 600 lbs Black Marlin, and an adventure scuba diver who has dived in every continent including Antarctica.
In winter, when the continent is locked in darkness and freezing conditions, staff learn skills such as woodwork and black and white photography to help while away their free time.