According to local campaigners interviewed by the Camden New Journal in 2014, after the square was sprayed with Glymark (which contains glyphosate) it became a barren wilderness. They claim squirrels were killed, pets came home with chemical burns, bees, bats and butterflies completely disappeared, and birds did not fly over the park for three months after spraying.
In response to a petition signed by hundreds of residents, the London borough's council agreed to a one-year trial ban on glyphosate use in the square, starting in May 2014.
But at a community meeting on 12 November 2015, it was decided the council would resume spraying with glyphosate - reportedly as manual weeding had proven too costly.
Campaigners are again petitioning to have the chemical banned.