New Study Examines San Joaquin Valley, Home to America’s Dirtiest Air – Smithsonian (blog)


Smithsonian (blog)

New Study Examines San Joaquin Valley, Home to America's Dirtiest Air
Smithsonian (blog)
Not coincidentally, the San Joaquin Valley is also the most productive agricultural region in the world and the top dairy-producing region in the country. Heavy duty-diesel trucks constantly buzz through the valley, emitting 14 tons of the greenhouse

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