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Decoupling emissions from growing traffic volume

2012.01.31
In Europe and North America, the period 1970-2005 saw some interesting changes in the correlation between traffic volume and the level of emissions in the road transport sector, as well as an important continuity.

Find it In: CO2 standards, Emission control technologies, Emissions trends, EU heavy-duty vehicle CO2 regulation, EU light-duty vehicle CO2 regulation, EU vehicle targets, Fuel economy, GHG standards, Passenger Vehicles, Vehicle emissions standards, Heavy-duty Vehicles

Cartogram: Passenger car markets and carbon emissions in the EU

2011.12.15
Two cartograms showing the relative size in 2010 of new passenger car markets in the EU member states, and their relative average new vehicle carbon emissions.

Find it In: CO2 standards, EU light-duty vehicle CO2 regulation, EU vehicle targets, Fuel economy, GHG standards, Passenger Vehicles, Vehicle emissions standards

California Air Resources Board Proposed Regulation - Clean Fuels Outlet

2011.12.15
Over half of California’s 2050 passenger vehicle fleet will need to be powered by fuel cell vehicles in order to meet California’s goal of reducing passenger vehicle emissions by 80% in 2050, according to a projection by the California Air Resources Board (CARB).

Find it In: Air pollution, Electric Vehicles, Passenger Vehicles, Fuels

Inertia classes, vehicle emissions tests, and the dead hand of the past

2011.12.09
The current system of using inertia classes for vehicle emissions testing is an anachronism, kept in place by force of habit rather than force of logic. And it has the bad effect of allowing manufacturers, if they wish (and some do), to portray specific vehicle models as less polluting and more fuel efficient than they really are.

Find it In: Air pollution, CO2 standards, Emission control technologies, EU light-duty vehicle CO2 regulation, EU vehicle targets, Fuel economy, GHG standards, Passenger Vehicles, Vehicle emissions standards, Vehicle test procedures, Worldwide harmonized light vehicles test procedure

Overturning conventional wisdom on aircraft efficiency trends

2011.12.01
Fuel prices alone have not produced consistent improvements in aircraft efficiency, and improvements in fuel efficiency due to the introduction of new aircraft have decreased over time.

Find it In: Aviation

Cartogram: Top vehicle markets, 2010

2011.10.03
Equal-area cartogram showing a world map with countries/regions resized according to passenger vehicle market size.

Find it In: Passenger Vehicles

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