если не принять меры

if left unchecked (ART Vancouver); unless action is taken (Does Granville Island have a long-term future, or will it slip under the sea like a modern-day Atlantis? One long-time tenant, who said he speaks for many associates with businesses on Granville Island, doesn’t have faith it will have a future unless action is taken now. -- если не принять меры сейчас (vancouversun.com) ART Vancouver)