[geo] Arctic sea ice could disappear even if world achieves climate target

[Greg Rau]

> 
> https://www.theguardian.com/world/2017/mar/06/arctic-sea-ice-disappear-world-achieves-climate-target?CMP=share_btn_link
> 
> 
"A 2C rise would still mean a 39% risk that ice would disappear in the Arctic 
Ocean in summers, they said. Ice was virtually certain to survive, however, 
with just 1.5C of warming.


-- 
You received this message because you are subscribed to the Google Groups 
"geoengineering" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to geoengineering+unsubscr...@googlegroups.com.
To post to this group, send email to geoengineering@googlegroups.com.
Visit this group at https://groups.google.com/group/geoengineering.
For more options, visit https://groups.google.com/d/optout.

[geo] IPBES5

[Patricia Balvanera]

The Plenary of the Intergovernmental Platform on Biodiversity and Ecosystem 
Services with representation from 130 countries and delegates of major NGOs 
and environmental and scientific organizations is happening this week. 
Follow progress at IPBES in Facebook and #IPBES5 on twitter

-- 
You received this message because you are subscribed to the Google Groups 
"geoengineering" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to geoengineering+unsubscr...@googlegroups.com.
To post to this group, send email to geoengineering@googlegroups.com.
Visit this group at https://groups.google.com/group/geoengineering.
For more options, visit https://groups.google.com/d/optout.

[geo] Geoengineering, Marine Microalgae, and Climate Stabilization in the 21stCentury

[Charles H. Greene]

RESEARCH ARTICLES

Geoengineering, Marine Microalgae, and Climate Stabilization in the 21stCentury

Authors
Charles H. Greene, Mark E. Huntley, Ian Archibald, Léda N. Gerber, Deborah L. 
Sills, Joe Granados, Colin M. Beal, Michael J. Walsh
http://onlinelibrary.wiley.com/doi/10.1002/2016EF000486/epdf
Accepted manuscript online:
1 March 2017

  *

KEY POINTS

  *   Industrial microalgae cultivation offers many advantages to help society 
achieve its climate stabilization targets.
  *   Microalgae‐derived biopetroleum products can contribute to mitigating and 
reversing effects of CO2 emissions.
  *   Microalgae cultivation can play important indirect role in reducing CO2 
emissions by displacing conventional agriculture.


Abstract: Society has set ambitious targets for stabilizing mean global 
temperature. To attain these targets,
it will have to reduce CO2 emissions to near zero by mid-century and 
subsequently remove CO2 from
the atmosphere during the latter half of the century. There is a recognized 
need to develop technologies
for CO2 removal; however, attempts to develop direct air-capture systems have 
faced both energetic and
financial constraints. Recently, BioEnergy with Carbon Capture and Storage 
(BECCS) has emerged as a
leading candidate for removing CO2 from the atmosphere. However, BECCS can have 
negative consequences
on land, nutrient, and water use as well as biodiversity and food production. 
Here, we describe
an alternative approach based on the large-scale industrial production of 
marine microalgae. When
cultivated with proper attention to power, carbon, and nutrient sources, 
microalgae can be processed
to produce a variety of biopetroleum products, including carbon-neutral 
biofuels for the transportation
sector and long-lived, potentially carbon-negative construction materials for 
the built environment. In
addition to these direct roles in mitigating and potentially reversing the 
effects of fossil CO2 emissions,
microalgae can also play an important indirect role. As microalgae exhibit much 
higher primary production
rates than terrestrial plants, they require much less land area to produce an 
equivalent amount of
bioenergy and/or food. On a global scale, the avoided emissions resulting from 
displacement of conventional
agriculture may exceed the benefits of microalgae biofuels in achieving the 
climate stabilization
goals.


On Mar 6, 2017, at 12:10 PM, Andrew Lockley 
> wrote:

Can you please send full paper to the list?

On 18 Nov 2016 19:46, "Charles H. Greene" 
> wrote:
Read attached and decide for yourself. This is in review in Crutzen + 10 issue 
of Earth’s Future.


On Nov 18, 2016, at 4:49 AM, Andrew Lockley 
> wrote:


Is that really geo

On 18 Nov 2016 00:55, "Charles H. Greene" 
> wrote:
Link: 
https://www.algaeconsortium.com/energy-food-and-climate-security-could-marine-microalgae-be-an-answer/?utm_campaign=shareaholic_medium=email_this_source=email


-- 
You received this message because you are subscribed to the Google Groups 
"geoengineering" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to geoengineering+unsubscr...@googlegroups.com.
To post to this group, send email to geoengineering@googlegroups.com.
Visit this group at https://groups.google.com/group/geoengineering.
For more options, visit https://groups.google.com/d/optout.