Sentences with phrase «aircraft emissions with»

Rapid estimation of global civil aircraft emissions with uncertainty quantification.

Not exact matches

Beyond Kerosene The amount of emissions from aircraft compared with other vehicles is relatively small — roughly 3 percent of total worldwide greenhouse gas emissions from fossil fuel burning, according to the U.N. Intergovernmental Panel on Climate Change (IPCC)-- nonetheless it has a major impact on the climate.

His company is preparing to launch two more satellites and is developing sensor packages that can be carried by aircraft, along with ground - based emissions sensors to monitor large industrial complexes.

WASHINGTON, June 2 (Reuters)- The U.S. Environmental Protection Agency plans as soon as Friday to determine whether carbon dioxide from aircraft endangers public health, a first step to regulating emissions from the aviation sector, sources familiar with the rulemaking process said.

By TARA PATEL Aerospace manufacturers are pressing ahead with their plans to develop the next generation of supersonic jetliners despite renewed uncertainty about the environmental impact of exhaust emissions that could ground the high - speed aircraft.

Analyses of the ground and aircraft data performed by Setyan et al. (2012), Shilling et al. (2013), and Kleinman et al. (2016) showed that organic aerosol production increased when human - caused emissions from Sacramento mixed with air rich in isoprene, an organic compound wafting from many plants that originate in the area's foothills.

This model produces estimates of criteria pollutant emissions and CO2 from all non-road sources, with the exception of commercial marine vessels, locomotives, and aircraft.

Aircraft operations can be optimized for energy use (with minimum CO2 emissions) by minimizing taxiing time, flying at optimal cruise altitudes, flying minimum - distance great - circle routes, and minimizing holding and stacking around airports.

Most scientific studies track methane in one of two ways: either by measuring the gas in the atmosphere with instruments placed on tall towers or flown on aircraft, or by analyzing emissions directly at the source, such as at oil and gas wells.

This is consistent with ICAO's push to cap global emissions of civil aircraft at 2020 levels, as specified in its Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), that requires offsets for every year that an airline operator exceeds emissions from 2019 - 2020 levels.

Potential GHG emissions reductions from efficiency improvements on new vehicle designs in 2030 compared with today range from 40 — 70 % for LDVs, 30 — 50 % for HDVs, up to 50 % for aircraft, and for new ships when combining technology and operational measures, up to 60 %.

As both the House and the Senate grapple with proposed carbon - cutting measures — carbon taxes and «cap - and - trade» schemes for big CO2 emitters such as coal - fired power plants; increased Corporate Average Fuel Economy (CAFE) standards for cars, SUVs, and trucks; and mandatory set - asides for clean renewable energy in the mix of energy generation options — emissions from aircraft seem, at least for the time being, to have gone over the heads of most policymakers engaged in the rush to cut carbon emissions.

There are plenty of real problems with aircraft emissions.

In accordance with the Revised 1996 IPCC Guidelines, which are used by Parties to prepare their greenhouse gas inventories, emissions from fuel sold to ships or aircraft engaged in international transport (known as «bunker fuels») should not be included in national emission totals, but reported separately.

Likewise, you will find that «transportation activities accounted for 28 percent of U.S. greenhouse gas emissions in 2012» with the largest sources being «passenger cars (43.2 percent), light duty trucks, which include sport utility vehicles, pickup trucks, and minivans (18.1 percent), freight trucks (22.2 percent), rail (2.6 percent), and commercial aircraft (6.3 percent)».

# 2: Continental Airlines, Houston, TX — «Besides spending more than $ 16 billion over the past ten years to replace its fleet with more efficient aircraft, it installed fuel - saving winglets that reduce emissions by up to 5 % on most of its Boeing 737s and 757s, and reduced the nitrogen oxide output from ground equipment at its Houston hub by over 75 % since 2000.»

«Given the substantial lead time for the standards, along with anticipated fuel efficiency gains for new aircraft types already in development by manufacturers, the standards will serve primarily to prevent backsliding in emissions,» ICCT said in a statement.

WASHINGTON / MONTREAL (Reuters)- International aviation talks have hit a roadblock over a plan to limit carbon emissions for aircraft in a clash between developed and developing countries on how they view their responsibilities, two sources familiar with the matter said.

Parametric uncertainties in aircraft emissions and concentration - response functions are propagated throughout the analysis, along with estimates of modeling uncertainty.