Here is an illustration of a company that is working to solve one of the world’s most important problems: indoor air pollution. Estimates place diseases due to indoor air pollution (mostly caused by cooking over open fires indoors) as the killer of over 1.5 million people per year. That makes indoor air pollution the 8th deadliest killer on the planet. For comparison, even these guys report that climate change “kills” 150,000 people yearly. The IPCC mortality estimates of future climate change are nowhere near that high.
In any case, Envirofit has sold over a quarter-million stoves that burn fuel more efficiently and require less fuel – meaning that the world’s poorest people now have more time and money to do other things, and their health will dramatically improve, creating a virtuous cycle of development.