Carnegie Mellon University engineering researchers Christopher L. Weber and Scott H. Matthews argue that rising U.S. trade with countries like China has major consequences for the future of global climate policy. In a June 2007 research paper published in the journal Environmental Science and Technology, the Carnegie Mellon researchers describe how the U.S. has reduced its increasing carbon emissions by importing more carbon-intensive goods from other countries.
For example, the amount of carbon dioxide (CO2) emissions generated from making a desktop computer in China could be up to three times higher than when the same desktop computer is made in the U.S., according to the Carnegie Mellon study. In total, the authors estimate that CO2 emissions associated with imports rose from 12 percent of total U.S. emissions in 1997 to 22 percent in 2004, a substantial increase given that the U.S. already emits around 25 percent of the world’s total global carbon dioxide.
“These emissions are only going to increase as the United States continues to consume more and more essential goods from outside its borders,” said Matthews, an associate professor in the departments of civil and environmental engineering and engineering and public policy. And because the U.S. continues to import more goods from carbon-intensive trading partners, the researchers conclude this trend is likely to continue in the short term, without major efforts toward efficiency gains and cleaner development in the emerging industrial economies. Weber and Matthews urge the U.S. and other developed countries to agree to further reduction of greenhouse gases.
Last week, the U.S. did remove a major obstacle to an international agreement when President Bush reversed a longstanding policy and called on the world’s largest greenhouse gas emitters, including China and India, to discuss future reductions in greenhouse gas emissions. President Bush has long held the view that emerging economies, such as China and India, should join the developed economies in requiring emission reductions.
“Complicating the problem is the need to temper how we deal with emerging countries,” said Matthews. “To ask the developing countries to lower emissions too early, too abruptly will hinder their development and hamper their efforts to achieve industrialization and modernization.”
As global trade continues to expand, issues of trade and emissions will continue to grow in importance. Many researchers have questioned how emissions associated with traded goods should be accounted for.
“The central question is one of responsibility,” said Weber, a graduate researcher in the departments of civil and environmental engineering and engineering and public policy. “Over the last decade, the United States’ share of global carbon emissions has gone down and China’s has gone up. However, if you count not by who makes the goods, but by who consumes the goods, the United States’ share of responsibility has stayed constant or even gone up. However, these emissions are not counted because they’ve been outsourced to other countries.”
Chriss Swaney | EurekAlert!
Preservation of floodplains is flood protection
27.09.2017 | Technische Universität München
Conservationists are sounding the alarm: parrots much more threatened than assumed
15.09.2017 | Justus-Liebig-Universität Gießen
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
19.10.2017 | Materials Sciences
19.10.2017 | Materials Sciences
19.10.2017 | Physics and Astronomy