What's with the "instead"? There is more than one person. Ironically perhaps, doing something about climate change, re-organizing cities to deprioritize cars a

What's with the "instead"? There is more than one person. Ironically perhaps, doing something about climate change, re-organizing cities to deprioritize cars and encourage walking, would also mitigate cancer, Alzheimer's and heart disease, by reducing carcinogenic PM2.5 in the air, and improving people's level of fitness.