[lolinder]

If OP is correct that the quantity mentioned is an exaggeration, we should be open about that. Popular trust in science—especially in the domains of health and the environment—is extremely low lately and won't be helped by lying to people to try to get them to change their behavior.

(I don't know whether or not the number is correct, but OP isn't wrong to warn against exaggerating.)

[user3939382]

I would say, if OPs claim is correct, "x is not happening but y is" To say only the first minimizes the issue, even if unintentionally.