The trend is the same across the country. Since 2000, more than 64,000 dairies with fewer than 200 cows have closed. Over that same period, the number of mega-dairies — those with 1,000 or more cows — has more than doubled.
Perennial campaign issues like the economy, health care and immigration have long driven voters to the polls. But, in the face of growing international concern about the planet's future, climate change and the environment are emerging as key concerns.