Off the top of my head, for animal welfare I didn't think this was the case. I thought we routinely surpassed minimum EU standards, which has put our farmers at disadvantage. I imagine there are other areas, but I wouldn't ever suggest all.
Its not the case for animal welfare but that's not environment,
We as a nation love our animals and are one if the much better countries.
When it comes to environment were the opposite, most of Europe is better.
The good thing with Europe is it drags everyone up.
So I think it's in a month or so the pig welfare finally comes inti force that raises the standard up to what the uk has been doing for years.
While many years ago a lot if iirc rivers were essentially dead and EU regulations forced us to clean up.
While we still don't comply with things like nox emissions.
If you care about the environment its a big plus to remain in EU. But obviously people with have many items on such a in/out list. But tor that article to suggest that using the "analysis" they did is just nonsense.