Tinkering with climate change through climate engineering isn't going to help us get around what we have to do says a new report authored by researchers at six universities, including Simon Fraser University.
After evaluating a range of possible climate-altering approaches to dissipating greenhouse gases and reducing warming, the interdisciplinary team concluded there's no way around it. We have to reduce the amount of carbon being released into the atmosphere.
SFU assistant professor Jonn Axsen has co-authored a new report on climate engineering to battle climate change.
Credit: Carol Thorbes, SFU PAMR
"Some climate engineering strategies look very cheap on paper. But when you consider other criteria, like ecological risk, public perceptions and the abilities of governments to control the technology, some options look very bad," says Jonn Axsen.
The assistant professor in SFU's School of Resource and Environmental Management is a co-author on this study, which appears in the latest issue of the peer-reviewed journal Frontiers in Ecology and the Environment. It is the first scholarly attempt to rank a wide range of approaches to minimizing climate change in terms of their feasibility, cost-effectiveness, risk, public acceptance, governability and ethics.
It states reducing emissions, through some combination of switching away from fossil fuels to low-carbon energy sources, improving energy efficiency, and changing human behaviour, is still the most effective way of confronting climate change.
The authors note though that some approaches to climate engineering are more promising than others, and they should be used to augment efforts to reduce the climate-change effects resulting from human activity. For example, strategies such as forest management and geological storage of carbon dioxide may be useful complements.
Other climate engineering strategies are less appealing, such as fertilizing the ocean with iron to absorb carbon dioxide or reducing global warming by injecting particles into the atmosphere to block sunlight.
"Take the example of solar radiation management, which is the idea of putting aerosols into the stratosphere, kind of like what happens when a large volcano erupts," Axsen explains.
"This is a surprisingly cheap way to reduce global temperatures, and we have the technology to do it. But our study asked other important questions. What are the environmental risks? Will global citizens accept this? What country would manage this? Is that fair? Suddenly, this strategy does not look so attractive."
Working under the auspices of the National Science Foundation, the authors spent two years evaluating more than 100 studies that addressed the various implications of climate engineering and their anticipated effects on greenhouse gases.
The authors hope their study will help the public and decision-makers invest in the approaches with the largest payoffs and the fewest disadvantages. At stake, they emphasize, are the futures of our food production, climate and water security.
Background: Axsen's collaborators were Daniela Cusack, an assistant professor of geography in the University of California, Los Angeles' College of Letters and Science; Lauren Hartzell-Nichols, acting assistant professor in The Program on Values in Society and The Program on Environment at the University of Washington; Katherine Mackey, a postdoctoral researcher at Woods Hole Oceanographic Institution and the Marine Biological Laboratory; Rachael Shwom, assistant professor in human ecology at Rutgers University; and Sam White, assistant professor of environmental history at Ohio State University.
Simon Fraser University is consistently ranked among Canada's top comprehensive universities and is one of the top 50 universities in the world under 50 years old. With campuses in Vancouver, Burnaby and Surrey, B.C., SFU engages actively with the community in its research and teaching, delivers almost 150 programs to more than 30,000 students, and has more than 125,000 alumni in 130 countries.
Simon Fraser University: Engaging Students. Engaging Research. Engaging Communities.
Note: Axsen will be available to do media interviews starting at 11 a.m., Tuesday, June 2.
Carol Thorbes | Eurek Alert!
When the Brain Grows, the IQ Rises
16.02.2016 | Technische Universität Chemnitz
Standard BMI inadequate for tracking obesity during leukemia therapy
29.01.2016 | Children's Hospital Los Angeles
High resolution rotational spectroscopy reveals an unprecedented number of conformations of an odorant molecule – a new world record!
In a recent publication in the journal Physical Chemistry Chemical Physics, researchers from the Max Planck Institute for the Structure and Dynamics of Matter...
Strands of cow cartilage substitute for ink in a 3D bioprinting process that may one day create cartilage patches for worn out joints, according to a team of engineers. "Our goal is to create tissue that can be used to replace large amounts of worn out tissue or design patches," said Ibrahim T. Ozbolat, associate professor of engineering science and mechanics. "Those who have osteoarthritis in their joints suffer a lot. We need a new alternative treatment for this."
Cartilage is a good tissue to target for scale-up bioprinting because it is made up of only one cell type and has no blood vessels within the tissue. It is...
Physicists in Innsbruck have realized the first quantum simulation of lattice gauge theories, building a bridge between high-energy theory and atomic physics. In the journal Nature, Rainer Blatt‘s and Peter Zoller’s research teams describe how they simulated the creation of elementary particle pairs out of the vacuum by using a quantum computer.
Elementary particles are the fundamental buildings blocks of matter, and their properties are described by the Standard Model of particle physics. The...
A year and a half on the outer wall of the International Space Station ISS in altitude of 400 kilometers is a real challenge. Whether a primordial bacterium...
Researchers at Case Western Reserve University have developed a way to swiftly and precisely control electron spins at room temperature.
09.06.2016 | Event News
24.05.2016 | Event News
20.05.2016 | Event News
27.06.2016 | Agricultural and Forestry Science
27.06.2016 | Physics and Astronomy
27.06.2016 | Life Sciences