Durwood Zaelke’s eye for an environmental “quick fix” has arguably saved a universe half a grade Celsius of warming.
The environmental counsel is a little-known pushing force behind a pivotal amendment to what’s been called a many successful meridian covenant ever.
The BBC’s Hannah Long-Higgins meets him and finds that there are deeply personal reasons pushing him.
Produced by a BBC’s Franz Strasser and Stephen Hounslow.
Climate Defenders is a five-part array highlighting people who lead a conflict to strengthen a world from rising temperatures.