Conservation Connection

End the No Swim Era

End the No Swim Era

If you went to a beach at an Iowa state park last summer, you had a 1 in 4 chance of seeing a “Swimming Not Recommended” sign. 2025 was also a bad year for E. coli in the waters we monitor locally. What do we do about it?

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How bad was nitrate in 2025?

How bad was nitrate in 2025?

When the ball dropped on New Year’s Eve, nitrate in the Raccoon River was once again above the drinking water standard, closing out a bad year for water quality in Iowa. I compared this year’s nitrate levels to long-term averages at 47 sites to get a sense for where and when nitrate was highest and what was unusual about 2025.

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The economics of nitrogen have changed. Has our thinking?

The economics of nitrogen have changed. Has our thinking?

The scenarios in the Iowa Nutrient Reduction Strategy all assumed that nitrogen application rates could be reduced to levels that no longer make economic sense. There may be another path to clean water in Iowa, but both critics and defenders of the Iowa Nutrient Reduction Strategy are stuck on some outdated assumptions.

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How I Spent My Summer Glaciation

How I Spent My Summer Glaciation

This summer I went to Alberta and walked on a glacier. It was fun. It reminded me of Iowa’s icy past and our warming future. I learned a lot. If you read this, you’ll learn something too!

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