The federal government is putting a price on pollution because when pollution isn't free, there will be less of it.
Wikipedia cite:
{{cite news | author = Braeson Holland | title = A Price on Pollution | url = https://www.youtube.com/watch?v=yC1wvTVKx8M | work = YouTube | date = May 15, 2019 | accessdate = May 18, 2019 }}
A Price on Pollution May 15, 2019,
A Price on Pollution May 15, 2019,