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DGwartney's TakeOnIt

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Contents

DGwartney's Opinions

Is Geoengineering a good strategy to combat global warming?      Neutral      08 May 2009      0 Points
Many other strategies should take precedence over climate engineering in regards to combating global warming. The first thing to note is that even if you are not worried about climate change, an abundance of surface carbon dioxide emissions within large cities coupled with stagnant air masses is definitely not good for you. That being said, and assuming humans play a tremendous role in excess atmospheric CO2 (I know that is a debate in itself), natural measures such as carpool lanes or extended metro systems would be better alternatives. Even if engineering my be cheaper or faster than reducing CO2 emissions, perhaps it is not the safest way. However, the argument remains that the CO2 levels in the atmosphere already exceed the numbers that emission reduction could tackle on its own. With this consideration, the ideal approach would be to start implementing reduced emissions and couple this practice with geo-engineering down the road. This way, emissions may start to reach a plateau while geo-engineering tackles the rest of the excess CO2.

Do negative feedback loops mostly cushion the effect of atmospheric CO2 increases?      Neutral      08 May 2009      0 Points
The oceans and rain forests are primary carbon sinks in the world. Without them, and at the rate excess CO2 is pumped into the atmosphere via anthropogenic and biologic processes, the planet would likely see far more extreme temperatures than it currently does. The oceans are great sources for absorbing CO2 from the atmosphere which is beneficial to cooling the atmosphere. However, as air temperature increases (possibly from excess CO2 emissions) oceans will increase in temperature and will be less dense, thus losing their ability to absorb excess CO2 from the atmosphere. Due to this, increasing CO2 in the atmosphere will continue to increase air temperature, which in turn increases ocean surface temperature.

Does atmospheric CO2 cause significant global warming?      Agree      08 May 2009      1 Point
Positive and negative feedbacks on the climate are basically used to define the stability of a given climate. Positive feedbacks are those that directly impact the earth’s climate system which can cause a change in climate to occur, leading to even further change in the climate. A negative feedback is one that may cause a climate change, but effectively leads to further mechanisms that act as mitigation towards negative impacts that can emerge from environmental change.

A very strong example of a positive feedback mechanism is ocean warming. This is a very important topic that many researchers have been studying for quite some time. This is a positive feedback due to the ability of water to act as a sink for CO2. The oceans are great sources for absorbing CO2 from the atmosphere which is beneficial to cooling the atmosphere. However, as air temperature increases (possibly from excess CO2 emissions) oceans will increase in temperature and will be less dense, thus losing their ability to absorb excess CO2 from the atmosphere. Due to this, increasing CO2 in the atmosphere will continue to increase air temperature, which in turn increases ocean surface temperature.

A negative feedback would be if increasing temperature leads to increasing evapotranspiration. Effectively, this would have the possibility to increase cloud cover in the atmosphere. This may be advantageous in the ability of the clouds to reflect incident solar radiation, thus leading to cooler temperatures. There is a caveat to this though; if the increase in clouds are low they will indeed cool, but if the clouds produced act as cirrus (very high) they would have the ability to increase temperature. This falls in the category of possibly increasing the greenhouse effect with increasing cirrus formation.

Is global warming caused primarily by humans?      Agree      06 May 2009      -1 Point
Two major mechanisms for abrupt climate change will reside with changes in the atmosphere and oceans. Additional CFC’s in the atmosphere, including carbon dioxide and methane, have the potential of sharply raising the earth’s global temperature. The possible effects of climate forcing positive feedbacks is that as greenhouse gases increase, they can in turn cause increased heating. It is then assumed that the increased heating will continue along with even more increases in CFC’s. There are many other theories that carbon dioxide may have an irreversible change on our climate. The oceans have the ability to absorb the excess carbon dioxide, but if the numbers continue to rise the absorption may become saturated. This would lead to warming of the deep ocean warming as well as atmosphere. There is a possibility of increased frequency of El Niño events. This could even lead to a pole ward shift of the Hadley Atmospheric Circulation Cell. Such a drastic shift could force areas such as the American Southwest to become deserted wastelands. Essentially, if ocean and atmospheric oscillations are disturbed or updated due to increased heating, the global climate change has the potential of being disastrous.

Comparisons with Experts and Influencers

The similarity between DGwartney and each expert and influencer is calculated by looking at how the same questions were answered. These figures are used to calculate conforming, nonconforming, and projected opinions. The accuracy of the analysis depends on DGwartney's coverage, which grows with the number of their opinions entered into TakeOnIt.

Agree
Michael Oppenheimer
Physics Professor, IPCC Lead Author
87% agreement / 2 opinions

Nathan Paldor
Meteorology Professor
100% agreement / 1 opinions

Ian Enting
Physics Professor, IPCC Lead Author
100% agreement / 1 opinions

David Attenborough
Botanist, Writer, Nature Documentarian
100% agreement / 1 opinions

Barack Obama
United States President
100% agreement / 1 opinions

Hillary Clinton
US Secretary of State 2009-, Democrat
100% agreement / 1 opinions

Mostly Agree
Intergovernmental Panel on Climate Change
(IPCC) Scientific Body formed by U.N.
75% agreement / 3 opinions

Robin Hanson
Economics Professor
75% agreement / 2 opinions

Steven Chu
US Energy Secretary, Nobel Laureate in Physics
75% agreement / 1 opinions

Daniel Schrag
Climatology Professor
75% agreement / 1 opinions

In-Between
Time Magazine
Popular Magazine
50% agreement / 3 opinions

Roy Spencer
Meteorologist
50% agreement / 2 opinions

Bill Gates
Microsoft Cofounder, Philanthropist
50% agreement / 1 opinions

Mitt Romney
Former Governor of Massachusetts
50% agreement / 1 opinions

John Christy
Climatology Professor, Former IPCC Lead Author
50% agreement / 1 opinions

Paul Crutzen
Nobel Laureate in Chemistry
50% agreement / 1 opinions

Mostly Disagree
Monte Hieb
Mining Engineer
37% agreement / 2 opinions

David Evans
Mathematician
25% agreement / 2 opinions

Tom Segalstad
Geology Professor
25% agreement / 2 opinions

Qing-Bin Lu
Physics Professor
25% agreement / 1 opinions

Khabibullo Abdusamatov
Astronomer
25% agreement / 1 opinions

S. Fred Singer
Head of NIPCC, Astrophysics Professor
25% agreement / 1 opinions

Disagree
Denis Rancourt
Physics Professor
12% agreement / 2 opinions

Gerhard Gerlich
Physics Professor
0% agreement / 1 opinions

David Kear
Geologist
0% agreement / 1 opinions

David Bellamy
Botanist, Documentarian
0% agreement / 1 opinions

Robert Carter
Marine Geophysical Professor
0% agreement / 1 opinions

Global Warming Petition Project
Petition
0% agreement / 1 opinions

Conforming Opinions

DGwartney's conforming opinions are opinions that align with the group of experts and influencers DGwartney typically agrees with.

Coverage Answer Question
High Agree Is global warming caused primarily by humans?
Medium Neutral Is Geoengineering a good strategy to combat global warming?
Medium Agree Does atmospheric CO2 cause significant global warming?

Projected Opinions

DGwartney's projected opinions are opinions DGwartney is expected to have if their opinions align with the experts and influencers that they typically agree with.

Coverage Answer Question
Medium Neutral Should the United States invade Iraq?
Medium Mostly Disagree Is Yucca mountain the best place to store nuclear waste?
Medium Agree Is free trade generally beneficial for a country?
Medium Mostly Agree Does Cap and Trade beat carbon tax for reducing emissions?
Medium Mostly Agree Should abortion be legal?
Medium Mostly Disagree Should marijuana be decriminalized?
Medium Mostly Agree Is the war on drugs good policy?
Medium Neutral Can the US military presence in Iraq help create democracy?
Medium Mostly Agree Is the death penalty acceptable?
Medium Agree Should the US close Guantanamo Bay?
Medium Mostly Agree Should the United States have Universal health care?
Low Neutral Would invading Iraq result in a quagmire?
Low Disagree Should marijuana be legal?
Low Neutral Is the case for anthropogenic global warming politically biased in its favor?
Low Mostly Agree Will genocide occur if the US pulls its combat troops out of Iraq?
Low Neutral Should gay and straight couples have the same legal benefits?
Low Disagree Should the federal government ban gay marriage?
Low Mostly Disagree Should research on stem cells from human embryos be banned?
Low Mostly Agree Is affirmative action fair?
Low Agree Did complex life evolve through the process of natural selection?
Low Disagree Should Intelligent Design be taught in science class?
Low Agree Should the US fence its border with Mexico?
Low Neutral Are gun control laws a serious breach of civil liberties?
Low Neutral Is abstinence-only sex education effective?
Low Neutral Does God exist?
Low Neutral Should the US president talk face to face with Iran's president?
Low Disagree Is Russia's invasion of Georgia justified?
Low Agree Have climate models made good predictions so far?