NEW YORK (AP) — A thick, hazardous haze of wildfire smoke is looming over daily life for millions of people across the U.S. and Canada for a third day, and it’s expected to persist as long as the weekend. The conditions Thursday sent asthma sufferers to hospitals, delayed flights, postponed ballgames and pushed back a White House Pride Month celebration. If the worrisome haze is an unnerving novelty for millions of people on the United States’ East Coast, it’s a reminder of what other places experience more regularly. And scientists say it’s a wake-up call about the future.