Saturday, December 1, 2012

Aviation Policies

The European Union's policy on Aviation Emissions

From the start of 2012, the European Union (EU) required its members to include emissions from flights arriving at and departing from their airports in the EU scheme of emissions allowances and trading, while encouraging other nations to take equivalent measures. The EU exempts biofuel and claims to take a 'comprehensive approach' to reducing environmental impacts of aviation. To create space for political negotiations to get an international agreement regulating emissions from aviation, the EU has meanwhile postponed implementation of its directive by one year.

What kind of international agreement could be reached on aviation emissions? What policies work best? How do aviation policies fit into a comprehensive approach?

A Comprehensive Plan of Action on Climate Change

A comprehensive plan is best endorsed globally, e.g. through an international agreement building on the Kyoto Protocol and the Montreal Accord. At the same time, the specific policies are best decided and implemented locally, e.g. by insisting that each nation reduces specific emissions by a set annual percentage, and additionally removes a set annual amount of carbon dioxide from the atmosphere and the oceans, followed by sequestration, proportionally to its current emissions.

Policy goals are most effectively achieved when policies are implemented locally and independently, with separate policies each addressing the specific shifts that are each needed to reach agreed targets. Each nation can work out what policies best fit their circumstances, as long as they each independently achieve agreed targets. Counting emissions where they occur will encourage nations to adopt effective policies, such as imposing fees on the sales of products in proportion to the emissions they cause, and adopting product standards that ban products that would otherwise cause unacceptably high emissions while clean alternatives are readily available.


Clean Energy Policies

Policies aiming to achieve a shift to clean energy will apply to many sectors such as transportation (including aviation), power plants, and industry and buildings which are also large consumers of fossil fuel. The above image also shows policies specifically targeting aviation, in addition to clean energy policies that apply across sectors.

The image below proposes feebates as the most effective way to accomplish the necessary shift to clean energy. In such feebates, fees are imposed on polluting energy and associated facilities, with revenues used - preferably locally - to fund rebates on clean energy and associated facilities.


In line with such feebates, each nation could impose fees on jetfuel, while using the revenues for a variety of purposes, preferably local clean energy programs. Where an airplane lands arriving from a nation that has failed to add sufficient fees, the nation where the airplane lands could impose supplementary fees. Such supplementary fees should be allowed under international trade rules, specifically if revenues are used to fund direct air capture of carbon dioxide.

Aviation Policies

As said, apart from clean energy policies, it makes sense to additionally implement policies specifically targeting aviation. Airplanes not only cause carbon dioxide emissions, but also cause other emissions such as black carbon and NOx, contrails and cirrus cloud effects. The EU emissions scheme only targets a limited set of emissions, while also looking at their global warming potential, rather than the potential of emissions to cause warming locally, specifically in the Arctic. A joint 2011 UNEP/WMO report mentioned many measures to reduce black carbon and tropospheric ozone, adding that their implementation could reduce warming in the Arctic in the next 30 years by about two-thirds.

A 2012 study by Jacobson et al. concludes that cross-polar flights by international aviation is the most abundant direct source of black carbon and other climate-relevant pollutants over the Arctic. Rerouting cross-polar flights to instead circumnavigate the Arctic Circle therefore makes sense. While such rerouting consumes more fuel, it could reduce fuel use and emissions within the Arctic Circle by 83% and delay pollutant transport to the Arctic.

Given the need to act on warming in the Arctic, it makes sense to ban cross-polar flights. To further reduce the flow of pollutants to the Arctic caused by aviation, it makes sense to add fees on all jet flights. Such fees on jet flights would be additional to the above fees on fuel. This could further facilitate a shift from aviation toward cleaner forms of transportation, such as high speed rail. Where the revenues of such fees are used to fund direct air capture, they could also help kickstart an industry that could produce synthetic jetfuel and that could be instrumental in bringing atmospheric levels of carbon dioxide back to 280ppm.

Monday, November 26, 2012

Climate management will be the key to massively improving renewable energy performance and the eradication of poverty

By Bru Pearce

Bru Pearce,  AMEG member
who works at Envisionation Ltd
Climate management is going to be essential to improve the efficiency and cost of renewable energy and enable rapid decarbonisation of world’s energy generation systems to avoid catastrophic climate change. Ultimately control of our regional weather will be the solution to our greatest problems.

In a previous post ‘Geo engineering after the auto pilot has been turned off ‘ I concluded with the statement, “The time is coming to embrace geo-engineering, (after all we already have 4 billion years of experience in it behind us!).”

I was making the point that primeval life began changing our planets climate almost from its very first existence and that man as a recent incarnation in evolution has been significantly effecting the climate since we first hunted species to extinction and started cutting down huge swaths of forest to convert to agricultural lands.

Of course none of mans early efforts at geoengineering compare to the colossal scale of our latest experiment: that of practically doubling atmospheric CO2 in the last 200 years. 75% of which has been emitted in the last 50 years, in line with our spectacular population growth.

I spent the weekend of 3rd November at the Arctic Methane Emergency Group’s workshop on ‘how to cool the Arctic’ with the objective of retaining the sea ice in order to prevent massive methane release and in the hope of re-stabilising the jet stream. (It is the Jet Stream that in the last few years has become increasingly convoluted and led to the extremes of weather now being experienced in the Northern Hemisphere).

The premise of this meeting was that we do not have the time or the capability to implement a switch to an all renewable energy paradigm and that even if we did cut out our CO2 emissions entirely, at 400 ppm we have already set the planet up for 3 to 4 C° of warming.

Methane hydrates from the defrosting Arctic sea beds are already beginning to enter the atmosphere which will trigger numerous other feedback loops and lead to runaway global warming. Therefore we are going to have to take emergency measures and actively cool the Arctic in order to buy time in which to stabilise and decarbonise the atmosphere.

A truly dire situation, but the encouraging part about the meeting was that it would appear that the necessary technologies to manage our climate are within our grasp.

Many people shudder at the thought of engineering our climate, but given that we have, initially unwittingly but now knowingly, engineered our way deeper into the situation, we should not be surprised at the need to engineer a correction.

So I got to thinking about what climate management could do for us?

Here’s my list:
  • Massively improve the efficiency of our renewable engineering capabilities by:
    - Ensuring consistent winds
    – leading to greatly improved wind farm efficiency- Ensuring clear skies and massively upping the efficiency of photovoltaic’s as well as allowing radiated heat to escape into space at night 
  • Produce predictable rainfall, not just the amount, but when and where. This can open up many more hydroelectric power opportunities 
  • Increase agricultural output, for food and for biofuels 
  • Deliver water to all populations 
  • Provide perfect weather for tourism resorts, sunny days and snow in ski resorts 
  • Greening deserts opening up new agricultural land, (much better than cutting down forests for agriculture) 
  • Protect and preserve forests from drought 
  • All of the above collectively leading to the eradication of poverty 
In fact the more I think on it, the more obvious it is that humanity is going to have to take control of our climate. Firstly to avoid catastrophe and secondly to ensure that the all-renewable energy economy can become a reality, capable of supporting the power needs of 9 billion people, to the same modern standards that we all wish to achieve. It is essential to achieve this without destroying what is left of our natural environment and genetic diversity.

Ok it sounds utopian, but it is the future we want, the alternative is an unimaginable horror story. We are capable to of achieving great things; why on Earth would we not?

So how do we get there?

We are going to have to establish some very clear international rules:
  • A target to reduce and maintain CO2 at 280ppm as per the last 12,000 of the Holocene, (with further small corrective increases as necessary over time to prevent the decline into the next ice age) 
  • Sea level to be maintained at current levels 
  • Ice and snow extent to stay within the norms of the 20th century averages 
  • Systems will have to be put in place to manage microclimate change with planning proposals and applications over any changes in river water volume. And special applications will have to be made for desert recovery. With detailed studies into knock on impacts on other areas. 
  • Key features of natural cycles will have to be retained, but this does not mean that hurricanes, forest fires, floods and drought cannot be managed. 
Actions

It should be possible to ensure that most rain falls in the morning and evenings, while still maintaining the continuity of seasonal changes.

Being able to control the weather means knowing the weather in advance and being able to rely on it. Trade winds blowing consistently will make it possible to power ships by sail and for windmills to turn constantly.

It will be even more important for countries that are maintaining rain forests and other large areas of the climate management biosphere, to be compensated by the industrialised and agriculturalised parts of the world for the services they provide. Those services will need to be measured and brought into the dynamics of the new global economy.

In order to take control of our climate we first need to fully understand it. This means that our current efforts to monitor the biosphere need to be massively upgraded. Monitoring systems across the ocean surfaces and depths, on land and in the atmosphere, need to be installed to fully cover the planet. So that every small change can be recorded and its impacts identified.

An appropriate scale might be something like a one for every 100km2. With the data made available to a number of separate super computers that can give us a full evaluation of how the earth systems work. Of necessity this will require integrating the operation of the world economy, crop production, population and all other human dynamics. A huge undertaking that needs to be mans greatest and most urgent endeavour. (For more on this take a look at the International Centre for Earth Simulation foundation web site http://www.icesfoundation.org)

Total management of Earth’s climate will take time. It is something to work towards, although we may have to take emergency measures to cool the Arctic very soon. Small scale tests and research should begin immediately and be given all the funding necessary, so that we can meet the emergency and quickly deliver a fully renewable energy economy.

Learning to engineer our climate holds great promises for all life on earth and can make the dream of an all-clean energy future come true. I believe we can and have to do this.

The Growing Threat of Catastrophic Storm Surge in the Next 30 Years on a Fast, Global Warming Induced, Sea Level Rise and its Consequences for Coastal Cities and Humanity

By Malcolm P.R. Light
November 11, 2012

Abstract

Methane is erupting as widespread torches and fountains in the Arctic ocean up to 1 km across and is exponentially increasing in concentration in the Arctic atmosphere (Shakova et al. 2008 and 2010; Light and Carana 2012; Light 2012). The Arctic atmospheric methane is mostly derived from Arctic subsea shelf and slope methane hydrates due to their destabilization by globally warmed Gulf Stream currents which enter the Arctic west of Svalbard and through the Barents Sea. In the North Atlantic, the surface of the Gulf Stream is heated in the summer and is marked by excessive evaporation due to the global warming effects of pollution clouds emanating from North America (Figure 5; IPCC Working Group 1. Fig. 10.12 Lavatus Prodeo, 2012).
The exponential increase in Arctic atmospheric methane has caused an exponential decrease in the volume of Arctic sea ice and in the continent wide reflectivity (albedo) of the Greenland ice cap (Light 2012; NASA Mod 10A1 data, from Carana, 2012). The atmospheric Arctic methane which is almost half the density of air is rising like hydrogen into the Stratosphere where it is forming and all encompassing global warming veil further aggravating the global warming of the lower level greenhouse gas clouds.

The ice melt back curves from the oldest lower 5* year old ice to the youngest shallowest 2 and 1 year old ice are caused by the progressive increase in temperature of the Gulf Stream “Atlantic Waters” which are entering the Arctic beneath the ice and melting it from the bottom up. The heating of the Gulf Stream waters is directly linked to the global warming of the North Atlantic caused by green house gas pollution blowing east off North America.

Above summary diagram (Figure 15, click on image to enlarge) shows all the determined global warming temperature curves and the latest "Sandy" storm surge curve based on a mean storm surge of 14 feet added to the mean latent heat of ice melting curve (Light 2012; Fichetti, 2012). All the global warming curves converge on a region between 2034 and 2052 where the mean atmospheric temperature anomaly will be greater than 8°C and all of the Earth's ice caps will have melted with a consequent sea level rise of 68.3 m (224 feet) above mean sea level (Wales, 2012). In particular the accelerated global warming curve from Carana (2012) and the "Sandy" storm surge curve converge on the mean atmospheric temperature extinction point derived from 20 estimates (Light 2012). This gives great confidence in the interpretation that we can expect catastrophic climate change from methane induced global warming between 2034 and 2052 unless humanity sharply cuts back some 90 to 95% on global greenhouse gas emissions and converts all its energy resources to renewable energy/ nuclear power.

A series of progressive extinction zones have been determined (after Parry et al. 2007) and include:-
  • Bleaching of most corals when the atmospheric temperature anomaly is between 1 and 2°C
  • Extreme droughts will extend over 1 - 30% of the land area when the atmospheric temperature anomaly exceeds 2°C which will make more than 1.8 billion people water stressed.
  • Widespread coral mortality will occur when the mean atmospheric temperature anomaly is between 2.5°C and 3.5°C and will be associated with a massive increase in the ferocity of tropical cyclones/hurricanes far in excess of the Sandy super storm.
  • Complete deglaciation and coastal inundation is expected when the mean atmospheric temperature anomaly increases from 4 to 8°C with a consequent sea level rise of some 68.3 metres (224 feet) above sea level. There will be major global extinction over this temperature interval as cereal production sharply decreases outside of the tropics.
Super storm Sandy has shown that Manhattan is already open to storm surge flooding and by 2016 when the Arctic Ocean begins to be free of ice, we can expect more violent hurricanes bearing down on the eastern coastline of the United States and increasing catastrophic damage to the coastal cities there.

The Alamo Project is a call for United States scientists and engineers to volunteer to develop a system of destroying the fast growing methane clouds in the atmosphere by radio/laser means or other processes before they destroy us. See this page:-
http://www.facebook.com/AlamoProject

Immediate and concerted action must be taken by governments and oil companies to depressurize the Arctic subsea methane reserves by extracting the methane, liquefying it and selling it as a green house gas energy source (see the ANGELS Project). See this post:-
http://arctic-news.blogspot.com/2012/06/angels-proposal.html

If greenhouse gas emissions are not sharply curtailed by 90% to 95% and the Arctic subsea and atmospheric methane extracted and destroyed, mean rising sea levels will breach the Thames Barrier by 2029 flooding London and the proposed Verrazano Narrows barrier in New York by 2030. The base of the Washington Monument (D.C.) will be inundated by 2031. By 2051, total global deglaciation will finally cause the sea level to rise up the lower 35% of the Washington Monument and humanity will have been eliminated by worldwide flooding and firestorms.


Thursday, November 15, 2012

Arctic methane: Why the sea ice matters



Arctic methane: Why the sea ice matters 
a new film by Envisionation.co.uk
Interviews with:
James Hansen - NASA
Natalia Shakhova - IARC
Peter Wadhams - Cambridge University, UK
David Wasdell - Apollo-Gaia Project



Arctic Methane: Why The Sea Ice Matters

James Hansen: If it begins to allow the Arctic Ocean to warm up and warm the ocean floor, then we'll begin to release methane [from] hydrates, and if we let that happen, that's a potential tipping points that we don't want to pass. There are now observations that methane is beginning to be released by both melting tundra on the land and bubbling up in the Arctic Ocean, indicating some warming of the Arctic Ocean.

Natalia Shakhova: The total amount of methane in the current atmosphere is about 5 Gt. The amount of carbon preserved in the form of methane in the East Siberian Arctic Shelf is ~ from hundreds to thousands Gt. What divides this methane from the atmosphere is a very shallow water column and a weakening permafrost, which is losing its ability to serve as a seal. This area is very seismically and tectonically active and there was some investigation that the tectonic activity is increasing.

Peter Wadhams: At the rate we're going, it will bring us to an ice-free Arctic in about four years time. [The Arctic Ocean] now warms up to about 5 degrees [5°C or 41°F, i.e.] enough to start warming up the seabed. The seabed at the moment is frozen, but it's now starting to melt. That's allowing a lot of methane which is trapped under the permafrost to be released. That's a large boost to global warming, because methane is an extremely powerful climatically-active gas. 

David Wasdell: The warm water from the surface is now being mixed down to those areas that it never reached when the whole area was covered in sea ice. As soon as the area is open water, you have a process of heating that goes right down to those clathrate deposits on the seabed. The more the methane is released into the atmosphere, the faster the heating goes. It's probably the greatest threat we face, as a planet. We're already in a mass extinction event.