'We're only treading water': Ozone, smoke and smog besiege Coloradans despite climate efforts

USA TODAY - For more and to sign up click here Sharon Udasin A relentless wave of dry heat, coupled with a recent outbreak of wildfires, is fueling a summertime scourge of the Intermountain West: the near-daily spikes in ozone and other air pollutants, collectively known as smog. Colorado’s Denver metropolitan region and Northern Front Range — which extends from about the Wyoming border to Boulder — have been…