It wasn’t so much an invitation, as a challenge.

After Toledo Mayor Wade Kapszukiewicz remarked last month, “We know who’s causing this problem,” pointedly blaming the Lake Erie toxic algae problem on agricultural runoff, associations representing corn, wheat, and soybean farmers invited the mayor to come tour their farms and check out what they’ve done to reduce that runoff.

The algae isn’t all their fault, the farmers said. They are doing their best to limit the algae-feeding phosphorus runoff from their fields. And they don’t deserve to be demonized.

There are just a few problems with this ploy.

First, as the mayor astutely pointed out, anyone who wants to see how well pollution-reducing strategies are working ought to be looking at the lake, which was particularly putrid this summer, carpeted in a thick layer of algae.

The year 2019 is on track to be one of the worst algae seasons on record.

This despite very earnest and well meaning efforts from farmers throughout the state who have embraced better practices — well-funded by state and federal programs — that limit the amount of fertilizer running off their fields into waterways.

But even the Ohio Environmental Protection Agency’s own data showed last year that these voluntary pollution-control efforts were not making a dent in the overall amount of phosphorus pouring down the Maumee River into the lake.

… There is some dispute about the data, but some environmental activists believe western Lake Erie basin’s 146 concentrated animal feeding operations produce the manure equivalent of sewage generated by the cities of Los Angeles and Chicago. That manure has to go somewhere, and it usually ends up going down the Maumee.

If Ohio’s agricultural lobby were sincere in their plea for public officials to stop pointing fingers at the wrong culprits, they would get behind calls for a scientific inventory of pollution sources, particularly in the Maumee River basin.

… More than that, a scientific pollution inventory, which state and federal environmental authorities should call for, would set Ohio on a path to creating a pollution diet.

Creating a total daily maximum load would allow regulators to set pollution limits and then enforce them. …

If the agriculture lobby were serious about reducing runoff, they wouldn’t be inviting Toledo’s mayor to visit farms, they’d be inviting regulators.

— The Toledo Blade; Online: https://bit.ly/2k2ZCEW