Andrew and list:
1. This is to provide a few more direct links. The actual article
itself (no fee) is at:
http://scitation.aip.org/docserver/fulltext/aip/magazine/physicstoday/67/10/PT.3.2548.pdf?expires=1414257429&id=id&accname=guest&checksum=8886618D8A605D3D7EE7E0300475E242
2. I doubt many on this list would be bothered by what Dr. Higgins
has said. He has elevated geoengineering (both CDR and SRM, without arguing
for either) to be on a par with (!) mitigation and adaptation. Here is his
final paragraph:
The key challenge is to close the gap between scientifically informed
discussions of climate change and the increasingly contentious and often highly
misleading public debate. The good news is that the basics of climate change
risk management are well characterized and understood, at least among sub-
ject-matter experts. A wide range of policy options are available for
meaningfully dealing with climate change--including options that align with
virtually any political philosophy.
3. In looking for the word "biochar", I was concerned that his Figure
3 is missing that term. He credits AR5, WG1, chapter 7 (on clouds). Approach
"F" is labeled "Afforestation"; the text in Section 7 (p 632) makes clear that
"F" in the Figure should have been broader (to include both biochar and BECCS).
The word "biochar" is immediately above the original and reference is given to
appreciably more on both BECCS and biochar in WGI, Section 6.5 (p549).
See
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Chapter07_FINAL.pdf and
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Chapter06_FINAL.pdf
4. So, this is an attempt to make sure that others using this figure
(the Higgins paper or AR5, Chapter 7, p 632) realize this unfortunate
contraction of the CDR options by Chapter 7's page 632 authors/artists. I fear
many reading this paper (maybe his forthcoming book?) will come away believing
that afforestation is the sole biological possibility for CDR (Higgins does
have some good biology material). That is not possible if one reads the
above-cited chapters 6 and 7 in AR5-WGI. I am not here blaming Dr. Higgins.
Ron
On Oct 24, 2014, at 5:22 PM, Andrew Lockley <[email protected]> wrote:
> http://www.eurekalert.org/pub_releases/2014-10/ams-nsf102414.php
>
> PUBLIC RELEASE DATE:24-Oct-2014
>
> Contact: Yael [email protected]
> 202-355-9821
> American Meteorological Society
> @ametsoc
>
> New study finds options for climate change policy are well characterized
>
> WASHINGTON - October 24, 2014 - Policy options for climate change risk
> management are straightforward and have well understood strengths and
> weaknesses, according to a new study by the American Meteorological Society
> (AMS) Policy Program."Large gaps remain in society's consideration of climate
> policy," said Paul Higgins, the author of the study. "This study can help in
> the development of a comprehensive strategy for climate change risk
> management because it explores a much larger set of policy options."The study
> identifies four categories of climate change risk management:
>
> 1) mitigation - efforts to reduce greenhouse gas emissions;
>
> 2) adaptation - increasing society's capacity to cope with changes in climate;
>
> 3) geoengineering or climate engineering - additional, deliberate
> manipulation of the earth system that is intended to counteract at least some
> of the impacts of greenhouse gas emissions; and
>
> 4) knowledge-base expansion - efforts to learn and understand more about the
> climate system, which can help support proactive risk management."
>
> As a policy challenge, climate change boils down to four issues," according
> to Higgins. "Climate is changing; people are causing climate to change; the
> societal consequences of climate change are highly uncertain but include the
> potential for serious impacts; but there is a wide range of responses that
> can meaningfully help reduce the risks of climate change."The full report is
> available at the American Meteorological Society Policy Program web site at
> http://www.ametsoc.org/studies.
>
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