Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Global economy more carbon intensive, not less

22.05.2007
A new analysis shows that carbon intensity in the world economy is increasing. While emissions of carbon dioxide (CO2) are accelerating worldwide, we are gaining fewer economic benefits from each tonne of fossil fuel burned.

A study published this week in the Proceedings of the National Academy of Science shows that CO2 emissions increased by 1.1 % per year through the 1990s but the rate of increase jumped to 3 % per year in the 2000s.

The study analysed emissions from both developed and developing regions. Lead author of the paper, Dr Mike Raupach from the Global Carbon Project and CSIRO, says that "The world's developing regions are the places where emissions are growing fastest in relative terms. However, this only means that developing regions are catching up: they are still a long way behind the developed regions in terms of total emissions".

"The developed regions, representing just 20% of the world's population, account for nearly 60% of current emissions and 80% of cumulative CO2 emissions since the beginning of the Industrial Revolution. These cumulative emissions are the leading cause of current climate change”, says Dr Raupach.

“A major driver accelerating the growth rate in global emissions is that, globally, we’re burning more carbon per dollar of wealth created. In the last few years, the global use of fossil fuels has actually become less efficient. This adds to pressures from increasing population and wealth”.

Dr. Pep Canadell, co-author of the paper and executive director of the Global Carbon Project says "In the unfolding reality since 2000, the average global carbon intensity of energy has actually deteriorated (increased) and no region is showing signs of decarbonising its energy supply. The emissions growth rate since 2000 was greater than for the most fossil-fuel intensive of the Intergovernmental Panel on Climate Change emissions scenarios developed in the late 1990s".

The results strengthen findings that observed CO2 concentrations, global temperatures and sea level rise are all near or above the high end of the CO2 emission projections of the United Nations-IPCC.

As the Global Carbon Project chair, Dr Raupach led an international team of economists, carbon-cycle experts and emissions experts, to develop a regionalized analysis of trends in emissions and their demographic, economic and technological drivers. Using the Kaya identity (a technique for identifying the drivers of CO2 emissions), they analyzed the relationship between emissions and global population, world GDP (or gross world product) and world energy consumption.

Mike Raupach | alfa
Further information:
http://www.globalcarbonproject.org/activities\PNAS_May07\PNAS_Article_May07.html

More articles from Ecology, The Environment and Conservation:

nachricht How fires are changing the tundra’s face
12.12.2017 | Gesellschaft für Ökologie e.V.

nachricht Using drones to estimate crop damage by wild boars
12.12.2017 | Gesellschaft für Ökologie e.V.

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

Im Focus: Successful Mechanical Testing of Nanowires

With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong

Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Long-lived storage of a photonic qubit for worldwide teleportation

12.12.2017 | Physics and Astronomy

Multi-year submarine-canyon study challenges textbook theories about turbidity currents

12.12.2017 | Earth Sciences

Electromagnetic water cloak eliminates drag and wake

12.12.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>