September 3, 2019, 10am PDT
The Trump administration's rollback on August 29 of an Obama-era regulation to reduce methane emissions in the production and distribution of oil and natural gas did not sit well with large oil and gas companies who see value in reducing emissions.
December 16, 2017, 7am PST
A one-year suspension of an Obama-era rule to reduce methane emissions from oil and gas drilling on Federal and Indian lands will increase global warming and reduce federal revenue. Trump took action after Congress failed to repeal the rule.
November 30, 2017, 2pm PST
Ozone pollution is worsening in five counties in Southern California, and the Air Quality Management District doesn't know why.
August 27, 2016, 11am PDT
With a 32 percent increase in natural gas drilling in the Marcellus Shale in Pennsylvania, it is no surprise that emissions are increasing as well, particularly sulfur dioxide. However, the increase was dwarfed by decreases from the power sector.
May 18, 2016, 5am PDT
While the methane reduction targets are the same as the draft rule released last August (i.e., 40-45 percent reduction of 2012 levels by 2025), the new rule removes exceptions, resulting in a 30 percent improvement in reductions of methane.
January 26, 2016, 5am PST
The damage caused by Michigan environmental agencies charged with protecting public health extend far beyond Flint. Residents suffering health effects from a huge natural gas leak in Southern California see parallels with the lead poisoning crisis.
August 20, 2015, 7am PDT
On the heels of President Obama's Clean Power Plan rule that reduces carbon dioxide emissions from power plants, the new rule focuses on the other major greenhouse gas, methane, and rather than coal, it is focused on oil and gas drilling.
August 20, 2012, 8am PDT
A new study by NOAA scientists and colleagues shows a stunning reduction in vehicle-related air pollutants in the Los Angeles basin over the past several decades. Despite the gains, unhealthy air remains.