The humane approach to solving the feline overpopulation problem, called Trap Neuter Return (TNR), emerged on the public scene in Great Britain during the 1950s and later in Denmark in the 1970s. At some point during that time, TNR began to take hold in the U.S. as well, but it didn’t become part of the public discourse until the 1990s. That’s when Alley Cat Allies eased TNR into the mainstream.

CATalyst is a network of Irish TNR practitioners, some of whom have been practicing TNR since the late 1990s.

We rely heavily on information supplied by Alley Cat Allies. They have developed world-recognized best practices for the humane care of outdoor cats, and have written and provided materials, training and advice on these practices to thousands of Americans providing care to stray and feral cats in their community - and, now, to us in Ireland.

In these pages we are bringing all of our, and their, expertise to you.