When pollution gets bad enough in the rivers supplying Iowa's largest city with drinking water, it costs Des Moines around $16,000 a day to run a special system to filter out dangerous nitrates. It's a fact of life in the agriculture-dependent state—and climate change is making the water quality problem even worse.

When pollution gets bad enough in the rivers supplying Iowa’s largest city with drinking water, it costs Des Moines around $16,000 a day to run a special system to filter out dangerous nitrates. It’s a fact of life in the agriculture-dependent state—and climate change is making the water quality problem even worse.

From Earth News - Earth Science News, Earth Science, Climate Change via This RSS Feed.