Sentences with phrase «up emission inventories»

Not exact matches

EPA inventory data suggests that emissions from local distribution systems are thought to make up approximately 20 percent of the total from the entire natural gas supply chain.

Now, an expert U.N. panel has come up with a technical road map to guide the first global effort to create a standardized emissions inventory of tiny soot particles.

«Our study indicates that emissions due to ruminants and manure are up to twice the magnitude of existing inventories.

The guide can also be used by all operators wishing to draw up an inventory and then reduce their greenhouse gas emissions.

The greenhouse gas inventory it filed with the UN suggests fugitive emissions from the oil and gas sector made up a third of its total footprint in 2014.

... we estimate emission ratios between CO2ff and these species, and compare these with bottom - up inventory - derived estimates

This bottom - up modeling study, supported by emission inventories and crop production, simulates ozone on local to regional scales.

What the NYT fails to mention is the fact that the National Academy of Sciences (NAS) report actually recommended regulators use a combination of facility - level (bottom - up), aircraft and tower measurements (top - down) and satellite measurements in order to improve accuracy of methane emission inventories.

The EPA Inventory uses bottom - up estimates and engineering calculations in determining emissions levels.