News Earth Ozone hikes cardiovascular risk Pollutant triggers inflammation and other changes that can heighten risk of heart attack and stroke Share this:FacebookTwitterPocketRedditPrint By Janet Raloff June 25, 2012 at 6:22 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe