Sentences with phrase «showing higher methane emissions»

The subsequent studies have produced a mixed bag of results, with some showing higher methane emissions than expected, and others lower.

Not exact matches

Global methane and ethane emissions from oil production from 1980 to 2012 were far higher than previous estimates show, according to a new study which for the first time takes into account different production management systems and geological conditions around the world.

For the first time, the researchers also showed that higher HTC production temperatures resulted in a significant reduction in emissions of methane (CH4) and ammonia (NH3) and an increase of carbon dioxide and carbon monoxide.

We find (i) measurements at all scales show that official inventories consistently underestimate actual CH4 [methane] emissions, with the natural gas and oil sectors as important contributors; (ii) many independent experiments suggest that a small number of «super-emitters» could be responsible for a large fraction of leakage; (iii) recent regional atmospheric studies with very high emissions rates are unlikely to be representative of typical natural gas system leakage rates; and (iv) assessments using 100 - year impact indicators show system - wide leakage is unlikely to be large enough to negate climate benefits of coal - to - natural gas substitution.

A new NASA - sponsored study shows that global methane emissions produced by livestock are 11 percent higher than estimates made last decade.

In addition, studies show that methane emissions are higher for hydraulic fracturing of shale gas than conventional natural gas production.

The other study from this year on this there: Back in January a lifecycle analysis of natural gas by the EPA showed that in fracking operations methane emissions were up to 9,000 times higher than previously reported.