Navigation Links
Human influence on the 21st century climate: 1 possible future for the atmosphere
Date:8/5/2011

e

Five years ago, the Intergovernmental Panel on Climate Change asked the climate science community to provide scenarios of greenhouse gas emissions and land use change to guide computer models that simulate potential changes to the Earth's climate.

Researchers decided on four possible targets that span a wide range of possible levels of man-made greenhouse gas emissions over the next century. These future scenarios are currently being used by climate modeling groups worldwide in a coordinated effort to compare models and advance the science of climate projections.

The researchers assigned each of the scenarios a specific target amount of the sun's energy that gets trapped in the atmosphere, a property called radiative forcing. Because of differences between the scenarios, each one will produce slightly different degrees of warming.

The RCP 4.5 scenario shoots for 4.5 Watts per square meters radiative forcing in 2100 and lets economics reveal how to achieve that goal the cheapest way possible. The scenario's 4.5 W/m2 means roughly 525 parts per million carbon dioxide in the atmosphere (currently, it hovers around 390 parts per million). It also means approximately 650 parts per million carbon dioxide-equivalents, which includes greenhouse gases besides carbon dioxide.

Unlike the other three scenarios, RCP 4.5 includes carbon in forests in the carbon market. This affects how people use land, as cutting down forests emits carbon dioxide but expanding forests stores it. An earlier modeling study showed that without placing such a value, forests could get cut down for use as biofuels and the land on which they stood used for crops.

The Greenhouse Race

Starting with the world as it looked in 2005 and setting the endpoint at 2100, the team let the model simulate the greenhouse gas
'/>"/>

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Competition with humans responsible for decline of New Zealands endangered sea lions, study shows
2. Sea squirt pacemaker gives new insight into evolution of the human heart
3. Man and the last great wilderness: Human impact on the deep sea
4. New UC sensor promises rapid detection of dangerous heavy metal levels in humans
5. Aging brains are different in humans and chimpanzees
6. BGI develops new strategy to uncover structural variations of human genomes
7. UCLA scientists complete first mapping of molecule found in human embryonic stem cells
8. Hebrew U. scientists show for first time how early human embryo acquires its shape
9. Penn vet researchers show lymphoma drug shrinks dog tumors, could lead to human treatment
10. 1 more way plants help human health
11. Groundbreaking new journal on the applications of digital games to human health
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... , Dec. 16, 2014 Research and ... the addition of the "Global Chemical Sensor ... http://photos.prnewswire.com/prnh/20130307/600769 ... the increasing demand for medical sensors in biomedical ... data for quick and correct diagnosis during surgical ...
(Date:12/15/2014)... , Dec. 12, 2014 Research and ... the addition of the "Global Facial Recognition ... http://photos.prnewswire.com/prnh/20130307/600769 ... identification of individuals. Facial recognition system measures the ... nose, jaw edges, mouth, and the distance between ...
(Date:12/11/2014)... Research and Markets , ... http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of the ... to their offering. One major ... of multimodal biometric systems. Multimodal biometric systems utilize ... verification and identification purposes. This helps to reduce ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... been accompanied by more years of perfect health, reveals new research ... . Indeed, a 20-year-old today can expect to live one ... a decade ago, even though life expectancy has grown. From ... 85 doubled, from about a 20 percent chance to a 40 ...
... BOSTON Boston University biology professor Richard Primack, ... completed an analysis of the changing arrival dates of ... Henry David Thoreau from the 1850,s. This research builds ... plants in Concord respond rapidly to temperature and are ...
... 2010 Elsevier ( www.elsevier.com ), a world-leading ... and services, today announced that as a result ... HealthMash, is now available on SciVerse Applications beta ... to provide insights to scientific researchers with relevant ...
Cached Biology News:We spend more time sick now than a decade ago 2We spend more time sick now than a decade ago 3WebLib develops application for Elsevier's SciVerse applications 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... Stemedica ... of clinical grade biological products as licensed by the State of California Food and Drug ... latest scientific discoveries at the 2009 World Stem Cell Summit. , ... San Diego, CA (PRWEB) Aug 27, 2009 -- ...
... , The statement below is from Pete Nicholas, Chairman ... employees and its Board of Directors. , , ... remarkably broad spectrum of issues. Foremost among them was his long and ... , He was a tireless advocate for patients, rights and for ...
... , CHICAGO, Aug. 26 Ajinomoto Food ... adding food product development capabilities. The Application Center North America ... , The ACNA mission is to develop and ... technology applications will be the initial focus of the Center: ...
Cached Biology Technology:Stemedica Selected By World Stem Cell Summit To Present Scientific Discoveries 2Stemedica Selected By World Stem Cell Summit To Present Scientific Discoveries 3Stemedica Selected By World Stem Cell Summit To Present Scientific Discoveries 4Boston Scientific Statement on the Passing of Senator Edward Kennedy 2
... 13(S)-HODE-d4 contains 4 deuterium atoms at the 9, ... for use as an internal standard for the ... 13(S)-HODE is produced by incubation of linoleic acid ... shown to inhibit the adhesion of tumor cells ...
...
...
Immunogen: Peptide corresponding to amino acid residues from the N-terminal region of human thyroid hormone receptor, alpha1/alpha2-isotype. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Biology Products: