Obama To Introduce Sweeping New Controls On Ozone Emissions - NYTimes.com

Obama To Introduce Major New Ozone Regulation
President Barack Obama speaks in the Brady Press Briefing Room at the White House in Washington, Monday, Nov. 24, 2014, after the Ferguson grand jury decided not to indict police officer Darren Wilson in the shooting death of Michael Brown. (AP Photo/Manuel Balce Ceneta)
President Barack Obama speaks in the Brady Press Briefing Room at the White House in Washington, Monday, Nov. 24, 2014, after the Ferguson grand jury decided not to indict police officer Darren Wilson in the shooting death of Michael Brown. (AP Photo/Manuel Balce Ceneta)

WASHINGTON — The Obama administration is expected to release on Wednesday a contentious and long-delayed environmental regulation to curb emissions of ozone, a smog-causing pollutant linked to asthma, heart disease and premature death.

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