BBC Article: “Kenya pollution: How air sensors are helping people fight pollution” https://www.bbc.com/news/world-africa-50647465
The subject of the BBC News article, John Keiti, lives in a part of Kenya that suffers from serious pollution. He borrowed air pollution censors and set up a system that broadcast the data. As a result a local factory has had to improve it’s filtering system leading to cleaner air.
John Keiti’s efforts go much further than investigating the “what is” and “why” parts of the first sentence in May 2020 TOK essay Prescribed Title #1. His work seems to fit very neatly with the phrasing used in sentence #2 of the Prescribed Title.