Stories tagged with "carbon dioxide"

The Risks of "Cap and Trade"

When discussions arise about Climate Change, and the possibility that carbon dioxide and the other greenhouse gases are responsible for the rise in global temperatures, one prevailing argument is that “we cannot afford to take the risk of the AGW argument being right, without doing something.” However, in that discussion, there is rarely any mention of possible negative consequences to mitigating against increased levels of carbon dioxide in the atmosphere. The only positions mentioned are frequently the projections of dramatic rises in sea levels, the promise of worse storms, droughts and climate conditions and other projected severe costs of inaction. The costs of the actions themselves are not addressed, and the implications are that the world will be a better place if some of the current trends in Climate Change are, if nothing further, stopped from progressing further.

But there are costs to the required changes in lifestyle that a reduction in carbon dioxide production will require, and those potential impacts are rarely spelled out to the public, or to the politicians who must enact the legislation to put new laws in place. However politicians, particularly in those districts that are likely to be impacted by the changes in regulations, are already showing some sensitivity to the potential negative aspects of “cap and trade” and so it might be worth exploring the topic in a little more depth.

Carbon capture and storage


An alternative to CCS is to burn less coal. Combined heat and power (CHP) generation involves capturing the waste heat from power stations and pumping this hot water to neighbouring houses in district heating systems. Danish CHP plant is over 90% energy efficient

IEA WEO 2008 - Fossil Fuel Ultimates and CO2 Emissions Scenarios

Report authors: Luís de Sousa and Euan Mearns

Part 3 of IEA WEO 2008 analyzes the expected impact of fossil fuel combustion upon climate change.

Page 382: As emissions of greenhouse gases build up in the atmosphere faster than natural processes can remove them, their concentrations rise. The Reference Scenario puts us on a path to doubling the aggregate concentration in CO2 equivalent terms by the end of this century, entailing an eventual global average temperature increase up to 6 ºC.

Rather surprisingly, IEA WEO 2008 does not provide any data on fossil fuel reserves and production forecasts to 2100 to back up this claim. Instead, it chooses to rely upon fossil fuel reserve figures underlying the Intergovernmental Panel on Climate Change (IPCC) models. Furthermore, using MAGICC (climate temperature model), and the default climate sensitivity constants, we are unable to reproduce the outcome of as much as a 6 ºC increase.





Using a CO2 emissions scenario based on our 2008 Olduvai Assessment combined with MAGICC, we estimate that global average temperatures may peak at around 1.6ºC above 1990 values toward the end of this century. Other climate models may produce temperature outcomes higher or lower than this.

Dr Richard Pike: on proved reserves, peak oil and carbon dioxide

Below the fold we have a video of Dr Richard Pike, CEO The Royal Society of Chemistry, discussing his belief that there is twice as much oil in the ground as major oil producers would have us believe.

Thanks to online debating channel www.friction.tv for providing the video.

Fatih Birol Presents the IEA World Energy Outlook 2007

On 5th December 2007 Fatih Birol, Chief Economist and Head of the Economic Analysis Division of the International Energy Agency (IEA) gave a presentation in London at the Shell Centre, hosted by the British Institute of Energy Economics (BIEE). Mike Pepler attended the meeting and took the following notes (his personal comments are in italics):

Introduction

·         We are on the eve of a new world energy order.

·         On the supply side, we have oil production outside the core OPEC countries reaching a peak, which is not good news for the International Oil Companies (IOCs). The National Oil Companies (NOCs) will determine future oil supply.

·         On the demand side, China and India are transforming global energy markets through their sheer size and rate of economic growth.

·         Between now and 2030, China and India will account for 70% of new global oil demand, and 80% of new coal demand.

The high potential of plug-in hybrids

This article was originally written for The Hybrid Debate.

The hybrid car may be a milestone in the history of personal transportation, but it still burns petrol and releases CO2. In this sense, it’s no different from the Model-T Ford of 1908. True, the technology provides significant efficiency benefits. But it won’t be revolutionary until its next incarnation, the "plug-in hybrid electric vehicle" (PHEV), goes mainstream.

In a PHEV, the internal combustion engine (ICE) is further reduced in size; the electric motor and battery pack are scaled up; and a cable is provided, to connect the car to the national grid via wall sockets. With heavy-duty electrical components taking more of the strain, the ICE runs for shorter periods of time, thus improving the car’s efficiency.

Climate Change – an alternative approach

The key objective in the face of climate change is to reduce the atmospheric concentration of carbon dioxide from the combustion of fossil fuel. Certainly there are other aspects, it would be useful not to cut down forests for example and there are other greenhouse gasses but as this is The Oil Drum we’ll focus on fossil fuels and CO2.

The entire debate when it comes to fossil fuels and climate change is focused on demand, the consumption of fossil fuels and the resultant emissions. This is not the only approach. Here I propose an alternative approach that totally ignores emissions but instead focuses on the extraction of fossil fuels from the ground.

Can hybrids make a difference in the near future?

I originally wrote this article for The Hybrid Debate.

The Hybrid Debate encourages people to consider how their choice of car affects the world we live in and imagine how mass acceptance of hybrid technology could influence other aspects of our lives.

The aim is to encourage informed analysis and public debate amongst advocates and sceptics of the new technology.

Writers and experts in areas ranging from urban planning to the economy have been asked to kick start the debate by imagining a hybrid future and the implications in their area of expertise.

www.thehybriddebate.com

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The future may be bright for hybrids, but it would have to be a very distant future, judging by the evolution of the car to date, and by the deeply ingrained tendencies of British drivers.

The Kipper Gas Field: Our CO2 Future

This is an update to an article of mine that was originally published in The Age back in March this year.

On the 15th March, the Esso/BHP Billiton Bass Strait joint venture asked the Minister for Planning whether a new gas conditioning plant at Longford requires an Environmental Effects Statement. The State Government's new guidelines for assessing projects with significant carbon dioxide (CO2) emissions were about to get their first big test.

The gas conditioning plant is required to treat new production from the Kipper gas field. The downside is that it would emit a million tonnes of CO2 every year. While not quite in the same league as a coal-fired power station, this is not the right approach to achieving urgent CO2 reductions.



CO2 capture and storage: The economic costs

Capturing carbon dioxide from coal (and gas) fired electricity plants. Subsequently transporting the carbon dioxide from the plant and storing it underground in (abandoned) oil/gas fields, in other geological formations or on the ocean floor. It seems like an excellent solution for continued fossil fuel use in the coming decades.

The European Union wants to have 12 large CO2 capture and storage demonstration projects in place by 2015, requiring an investment of 5 billion euro. The expectation is that this development will lead to significant cost reductions, making the technology affordable by 2020. There are however two large drawbacks, it will keep costing large sums of money and the process is quite energy intensive. In this post the economic viability of the process is scrutinized. In a previous post the impact of the extra energy cost of the process on coal depletion was quantified.