http://cicero.uio.no/no/posts/klima/former-un-climate-advisor-leads-initiative-to-regulate-geo-engineering

Former UN climate advisor leads initiative to regulate geo-engineeringKLIMA
<http://cicero.uio.no/no/posts/klima> - Et magasin om klimaforskning fra
CICERO
Key scientists
Christian BjørnæsCOMMUNICATION DIRECTOR
<http://cicero.uio.no/no/employee/8/christian-bjornaes>

Publisert 23.03.2017
Geo-engineering can be a cheap way of instantly lowering the Earth’s
temperature - with potentially devastating side effects. The technology is
here but international regulation is lacking.

The desire to control the weather is as old as humanity but only over the
last decade have we started to develop technologies to alter the climate. A
few are already developed, some exists only as models, and most are still
at the level of academic research.

On 16 February the Carnegie Council for Ethics in International Affairs
launched the Carnegie Climate Geoengineering Governance Initiative
<https://www.carnegiecouncil.org/programs/ccgg/index.html>, a four year
initiative to advance the governance of geo-engineering. The project is
bankrolled by the Carnegie Foundation and lead by Janos Pasztor. Most
recently, Pasztor was the United Nations assistant secretary-general for
climate change under Secretary-General Ban Ki-moon.

“There is very little, practically no discussion about geo-engineering at
the policy level. Our job is to move the debate from academia into
intergovernmental policy space and to develop governance”, said Pasztor
when KLIMA met him at COP22 in Marrakech.

Climate geoengineering is deliberate, intentional planetary-scale
interventions in the Earth system to counteract climate change

The long-term objective of the C2G2 Initiative is to encourage policy
dialogues on and to contribute to the development of governance frameworks
for climate geoengineering, which is defined as deliberate, intentional
planetary-scale interventions in the Earth system to counteract climate
change.
Two main technologies

Geo-engineering technologies can be divided in two categories. The
technologies that absorb CO2 from the atmosphere are called carbon dioxide
removal. Those that reduce the amount of sunlight that reaches the earth’s
surface are called solar radiation management.

Solar radiation management, where for instance particles are spewed into
the stratosphere to block sunlight from reaching the earth’s surface, can
work fast and are relatively cheap.

The low cost of some of these technologies could tempt countries and even
some large companies to deploy solar radiation management to protect their
interests.

“The problem with solar radiation management is that it doesn’t solve the
problem. Unless you simultaneously reduce emissions, you must manage the
incoming solar radiation for hundreds of years.

“Carbon dioxide removal on the other hand is relatively expensive and it
takes time, but it also solves the problem. You have two completely
different techniques and many researchers believe that we are most likely
to use them in combination”, said Pasztor.
Bio energy with CCS

Bio energy with carbon capture and storage, known as BECCS, is a carbon
dioxide removal technology. It is often referred to as negative emissions
and built into most of the IPCCs 2C scenarios. Although considered mostly
harmless, widespread use of BECCS to compensate for high emissions will
have side effects too.

“It has huge impact on land use, on water use, it affects precipitation and
therefore can threaten food security”, said Pasztor.

The Initiative will neither promote nor be necessarily against the
potential use of climate geoengineering, but will advocate for the
development of governance frameworks necessary for expanded research on
such techniques, including their environmental, social, and economic
impacts, as well as for their potential deployment.

“There is a plausible scenario in the next five, ten, fifteen years that
some governments may turn to geo-engineering. The IPCCs latest assessment
report makes it very clear that to keep warming below 2C, we need to deploy
a lot of negative emissions. Many people believe it is simply not possible
to reach those goals without some combination of geo-engineering.”

Widespread use of BECCS to compensate for high emissions will have side
effects too.

Despite this, geo-engineering is not a hot topic in the international
climate diplomacy.

“In the negotiation process, this topic is almost a taboo. There are no
discussions on it. Geo-engineering does not exist in the UNFCCC vocabulary.
You find references to negative emissions which is part of geo-engineering.
And certainly, no reference to solar radiation management.”

The reason could be that many policy makers are afraid geo-engineering will
steal attention from mitigation. Pasztor likens it to the debate around
adaptation 15 years ago.

“Those of us who promoted adaptation said it doesn’t matter how much we
mitigate, we still have to do some adaptation. Today, adaptation and
mitigation are looked at almost equally”
Towards government action?

The Initiative is engaging relevant stakeholders in intergovernmental and
international nongovernmental organizations, the research community, think
tanks, the private sector, as well as government officials to raise
awareness about the issues; to encourage policy dialogues; to develop
elements of the necessary governance frameworks; and ultimately to catalyze
intergovernmental action.

“We will reach out to governments both systematically and informally. After
a few years, we hope to have a network of organizations and institutions
both inside and outside government that is discussing these issues and
hopefully we will see some government action.

“In addition, we will work with treaties and existing conventions such as
the climate convention, the bio diversity convention and the London
anti-dumping convention. We will also be exploring some new alternative
legal arrangements that don’t exist yet”, said Pasztor.

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