Showing posts with label James Hansen. Show all posts
Showing posts with label James Hansen. Show all posts

Tuesday, June 24, 2008

Put oil firm chiefs on trial, says leading climate change scientist

Ed Pilkington, June 23, The Guardian

James Hansen, one of the world's leading climate scientists, will today call for the chief executives of large fossil fuel companies to be put on trial for high crimes against humanity and nature, accusing them of actively spreading doubt about global warming in the same way that tobacco companies blurred the links between smoking and cancer.

Hansen will use the symbolically charged 20th anniversary of his groundbreaking speech to the US Congress - in which he was among the first to sound the alarm over the reality of global warming - to argue that radical steps need to be taken immediately if the "perfect storm" of irreversible climate change is not to become inevitable.

Speaking before Congress again, he will accuse the chief executive officers of companies such as ExxonMobil and Peabody Energy of being fully aware of the disinformation about climate change they are spreading.

In an interview with the Guardian he said: "When you are in that kind of position, as the CEO of one the primary players who have been putting out misinformation even via organisations that affect what gets into school textbooks, then I think that's a crime."

He is also considering personally targeting members of Congress who have a poor track record on climate change in the coming November elections. He will campaign to have several of them unseated. Hansen's speech to Congress on June 23 1988 is seen as a seminal moment in bringing the threat of global warming to the public's attention. At a time when most scientists were still hesitant to speak out, he said the evidence of the greenhouse gas effect was 99% certain, adding "it is time to stop waffling".

He will tell the House select committee on energy independence and global warming this afternoon that he is now 99% certain that the concentration of CO2 in the atmosphere has already risen beyond the safe level.

The current concentration is 385 parts per million and is rising by 2ppm a year. Hansen, who heads Nasa's Goddard Institute for Space Studies in New York, says 2009 will be a crucial year, with a new US president and talks on how to follow the Kyoto agreement.

He wants to see a moratorium on new coal-fired power plants, coupled with the creation of a huge grid of low-loss electric power lines buried under ground and spread across America, in order to give wind and solar power a chance of competing. "The new US president would have to take the initiative analogous to Kennedy's decision to go to the moon."

His sharpest words are reserved for the special interests he blames for public confusion about the nature of the global warming threat. "The problem is not political will, it's the alligator shoes - the lobbyists. It's the fact that money talks in Washington, and that democracy is not working the way it's intended to work."

A group seeking to increase pressure on international leaders is launching a campaign today called 350.org. It is taking out full-page adverts in papers such as the New York Times and the Swedish Falukuriren calling for the target level of CO2 to be lowered to 350ppm. The advert has been backed by 150 signatories, including Hansen.

Tuesday, April 29, 2008

Hansen, Clock running out on irreversible climate change

Dr James Hansen, April 28, Online Opinion

New York: fifty years ago, Yankee Stadium had about 70,000 seats. It seldom sold out, and almost any kid could afford the cheapest seats. Capacity was reduced to about 57,000 when the stadium was remodeled in the 1970s. Most games sell out now, and prices have gone up.

The new stadium, opening next year, will reduce seating to about 51,800. This intentional contraction is aimed at guaranteeing sellouts, increasing demand, allowing the owners, in short order, to triple prices or more. The owners have learned that scarcity will fatten their wallets. The plan may discriminate against the lower middle class, but as long as the owner is footing the bill without public subsidies, there may be little grounds for complaint.

Now fossil-fuel moguls are intent on hoodwinking the entire planet with an analogous scheme.

The basic trick is oil producers overstating fossil-fuel reserves. Government "energy information" departments parrot industry. Partly because of disinformation, the major efforts needed to develop alternative energies have not been made.

The reality of limited supply forces prices higher. Eventually, sales volume will begin to decline, but fossil-fuel moguls will make more money than ever. They'll continue to assert that there's plenty more oil, gas or coal to be found, aiming to keep the suckers on the hook. Indeed, they may find somewhat more in the deep ocean, under national parks, in polar regions, offshore, and in other environmentally sensitive areas. They don't need much to keep the suckers paying higher and higher prices.

Oil "reserves" suddenly doubled when Organization for the Petroleum Exporting Countries decided that production quotas would be proportional to official reserves. These higher reserves are, at least in part, phantom. Coal "reserves" are based on estimates made many decades ago. Closer study shows that extractable coal reserves are vastly overstated, consistent with present production difficulties and rising prices. The presumed 200-year supply of coal in the United States is a myth, but it serves industry moguls well.

Conventional fossil-fuel supplies are limited, even if we tear up the Earth to extract every last drop of oil and shard of coal. Tearing up the Earth to get at those last drops - Exxon/Mobil proudly advertises that they're drilling the depths of the ocean and searching the most extreme pristine environments - is as insane as the smoker who trudged four miles through a raging storm to buy a pack of Camel cigarettes to feed his nicotine addiction.

It would be possible to find more fossil fuels, and extend our addiction and pollution of the environment, should we be so foolish as to take the path of extracting unconventional fossil fuels such as tar shale and tar sands on a large scale. That choice cannot be left to the discretion of industry moguls. The planet does not belong to them.

Basic facts on reserves must be combined with basic climate facts described in the paper Target Atmospheric CO2: Where Should Humanity Aim?

Our conclusion is that, if humanity wishes to preserve a planet similar to the one on which civilisation developed and to which life on Earth is adapted, CO2 must be reduced from its present 385ppm (parts per million) to, at most, 350ppm. We find that peak CO2 can be kept to about 425ppm, with large estimates for oil and gas reserves, if coal use is phased out by 2030 (except where CO2 is captured and sequestered) and unconventional fossil fuels are not tapped substantially. Peak CO2 can be kept close to 400ppm, if actual reserves are closer to those estimated by "peakists", who believe that the globe is already at peak global oil production, having extracted about half of readily extractable oil resources.

This lower 400ppm peak can be ensured, assuming phase-out of coal emissions by 2030, if a practical limit on reserves is achieved by means of actions that prevent fossil-fuel extraction from public lands, off-shore regions under government control, environmentally pristine regions and extreme environments. The concerned public can influence this matter, but time is short, the industry voice is strong and climate effects have not yet become so obvious to the public as to overwhelm the disinformation from industry moguls.

A near-term moratorium on coal-fired power plants and constraints on oil extraction in extreme environments are essential, because once CO2 is emitted to the air much of it will remain there for centuries. Improved agricultural and forestry practices, mostly reforestation, could draw down atmospheric CO2 by about 50ppm by the end of the century. But a greater drawdown by such more-or-less natural methods seems impractical, making a long-term overshoot of the 350ppm target level, with potentially disastrous consequences, a near certainty if the world stays on its business-as-usual course.

If we choose a different path, which permits the possibility of achieving 350ppm CO2 or lower this century, we can minimise the chance of passing tipping points that spiral out of control, such as disintegration of ice sheets, rapid sea level rise and extermination of countless species. At the same time, we could solve problems that seem intractable, such as acidification of the ocean with consequent loss of coral reefs.

In any event, we must move beyond fossil fuels soon, because a large fraction of CO2 emissions will linger in the atmosphere for many centuries.

The world must move to zero fossil-fuel emissions. This is a fact, a certainty. So why not do it sooner, in time to avert climate crises? At the same time, we halt other pollution that comes from fossil fuels, including mercury pollution, conventional air pollution, problems stemming from mountain-top removal and more.

Breaking an addiction is not easy. But we may be like the smoker who trudged four miles through rain to get a pack of Camels - when he got back to his motel he threw the pack away and never smoked again.

Fossil-fuel addiction is more difficult - one person's epiphany cannot solve the problem. This problem requires global co-operation. We must be on a new path within the next several years, or reducing CO2 levels this century becomes implausible. Developed countries, the source of most excess CO2 in the air today, must lead in developing clean energy and halting emissions. Yet it is hardly a sacrifice: "Green" jobs will be an economic stimulus and a boon to worker well-being.

A major fight is brewing - it might be called war. On the one side, we find the short-term financial interests of the fossil-fuel industry. On the other side: young people and other beings who will inherit the planet. The fight seems uneven. The fossil-fuel industry is launching a disinformation campaign, and they have powerful influence in capitals around the world.

Young people seem pretty puny in comparison to industry moguls, and animals don't talk or vote. The battle may start with local and regional skirmishes, one coal plant at a time. But it could build rapidly - we're running out of time.

Meanwhile, the moguls' dirtiest trick is spewing "green" messages to the public - propaganda, intended to leave the impression they're moving in the right direction. Meanwhile they hire scientific has-beens to dispute evidence and confuse the public.

When will we know that the long-term public interest has overcome the greed? When investors, companies and governments begin to invest en masse in renewable energies, when all aim for zero-carbon emissions.

Tuesday, April 01, 2008

Hansen to Australian PM: stop coal plants now

Open Letter From Dr James Hansen to Kevin Rudd, Australian Science Media Centre

Reproduced from Energy Bulletin


27 March 2008
The Hon Kevin Rudd, MP
Prime Minister of Australia
Australian Parliament
Canberra, Australian Capital Territory, 2600

Dear Prime Minister,

Your leadership is needed on a matter concerning coal-fired power plants and carbon dioxide emission rates in your country, a matter with ramifications for life on our planet, including all species. Prospects for today's children, and especially the world's poor, hinge upon our success in stabilizing climate.

For the sake of identification, I am a United States citizen, director of the NASA Goddard Institute for Space Studies and Adjunct Professor at the Columbia University Earth Institute. I am a member of our National Academy of Sciences, have testified before our Senate and House of Representatives on many occasions, have advised our Vice President and Cabinet members on climate change and its relation to energy requirements, and have received numerous awards including the World Wildlife Fund's Duke of Edinburgh Conservation Medal from Prince Philip.

I write, however, as a private citizen, a resident of Kintnersville, Pennsylvania, USA. I was assisted in composing this letter by colleagues, including Australians, Americans, and Europeans, who commented upon a draft letter. Because of the urgency of the matter, I have not collected signatures, but your advisors will verify the authenticity of the science discussion.

I recognize that for years you have been a strong supporter of aggressive forward-looking actions to mitigate dangerous climate change. Also, since your election as Prime Minister of Australia, your government has been active in pressing the international community to take appropriate actions. We are now at a point that bold leadership is needed, leadership that could change the course of human history.

I have read and commend the Interim Report of Professor Ross Garnaut, submitted to your government. The conclusion that net carbon emissions must be cut to a fraction of current emissions must be stunning and sobering to policy-makers. Yet the science is unambiguous: if we burn most of the fossil fuels, releasing the CO2 to the air, we will assuredly destroy much of the fabric of life on the planet. Achievement of required near-zero net emissions by mid-century implies a track with substantial cuts of emissions by 2020. Aggressive near-term fostering of energy efficiency and climate friendly technologies is an imperative for mitigation of the looming climate crisis and optimization of the economic pathway to the eventual clean-energy world.

Global climate is near critical tipping points that could lead to loss of all summer sea ice in the Arctic with detrimental effects on wildlife, initiation of ice sheet disintegration in West Antarctica and Greenland with progressive, unstoppable global sea level rise, shifting of climatic zones with extermination of many animal and plant species, reduction of freshwater supplies for hundreds of millions of people, and a more intense hydrologic cycle with stronger droughts and forest fires, but also heavier rains and floods, and stronger storms driven by latent heat, including tropical storms, tornados and thunderstorms.

Feasible actions now could still point the world onto a course that minimizes climate change. Coal clearly emerges as central to the climate problem from the facts summarized in the attached Fossil Fuel Facts. [See note below] Coal caused fully half of the fossil fuel increase of carbon dioxide (CO2) in the air today, and on the long run coal has the potential to be an even greater source of CO2. Due to the dominant role of coal, solution to global warming must include phase-out of coal except for uses where the CO2 is captured and sequestered. Failing that, we cannot avoid large climate change, because a substantial fraction of the emitted CO2 will stay in the air more than 1000 years.

Yet there are plans for continuing mining of coal, export of coal, and construction of new coal-fired power plants around the world, including in Australia, plants that would have a lifetime of half a century or more. Your leadership in halting these plans could seed a transition that is needed to solve the global warming problem.

Choices among alternative energy sources - renewable energies, energy efficiency, nuclear power, fossil fuels with carbon capture - these are local matters. But decision to phase out coal use unless the CO2 is captured is a global imperative, if we are to preserve the wonders of nature, our coastlines, and our social and economic well being.

Although coal is the dominant issue, there are many important subsidiary ramifications, including the need for rapid transition from oil-fired energy utilities, industrial facilities and transport systems, to clean (solar, hydrogen, gas, wind, geothermal, hot rocks, tide) energy sources, as well as removal of barriers to increased energy efficiency.

If the West makes a firm commitment to this course, discussion with developing countries can be prompt. Given the potential of technology assistance, realization of adverse impacts of climate change, and leverage and increasing interdependence from global trade, success in cooperation of developed and developing worlds is feasible.

The western world has contributed most to fossil fuel CO2 in the air today, on a per capita basis. This is not an attempt to cast blame. It only recognizes the reality of the early industrial development in these countries, and points to a responsibility to lead in finding a solution to global warming.

A firm choice to halt building of coal-fired power plants that do not capture CO2 would be a major step toward solution of the global warming problem. Australia has strong interest in solving the climate problem. Citizens in the United States are stepping up to block one coal plant after another, and major changes can be anticipated after the upcoming national election.

If Australia halted construction of coal-fired power plants that do not capture and sequester the CO2, it could be a tipping point for the world. There is still time to find that tipping point, but just barely. I hope that you will give these considerations your attention in setting your national policies. You have the potential to influence the future of the planet.
Prime Minister Rudd, we cannot avert our eyes from the basic fossil fuel facts, or the consequences for life on our planet of ignoring these fossil fuel facts. If we continue to build coal-fired power plants without carbon capture, we will lock in future climate disasters associated with passing climate tipping points. We must solve the coal problem now.

For your information, I plan to send a similar letter to the Australian States Premiers.

I commend to you the following Australian climate, paleoclimate and Earth scientists to provide further elaboration of the science reported in my attached paper (Hansen et al., 2008):

Professor Barry Brook, Professor of climate change, University of Adelaide
Dr Andrew Glikson, Australian National University
Professor Janette Lindesay, Australian National University
Dr Graeme Pearman, Monash University
Dr Barrie Pittock, CSIRO
Dr Michael Raupach CSIRO
Professor Will Steffen, Australian National University

Sincerely,

James E. Hansen
Kintnersville, Pennsylvania
United States of America

[See original for additional documentation at:
www.aussmc.org.au/documents/Hansen2008LetterToKevinRudd.pdf

Monday, March 31, 2008

NASA scientist urges PM to stop coal exports

Sarah Clarke, March 31, ABC

James Hansen wants coal mining and coal exports to stop.

NASA chief climate scientist James Hansen has written to Prime Minister Kevin Rudd asking him to consider halting plans for mining and export of coal in Australia.

Dr Hansen is one of the world's leading climate scientists and in a letter addressed to Mr Rudd, he has asked him to show leadership on the issue.

He says the "continuing mining of coal, export of coal, and the construction of new coal-fired power plants" should be halted and a transition is needed to solve the global warming problem.

He says choices of alternative energy sources are local considerations, but a decision to phase out coal use is a "global imperative".

The letter has been delivered to Mr Rudd's office today and has also been sent to the state and territory leaders.

Former head of the CSIRO's Climate Impact Group Barrie Pittock supports the letter and says Australia must take urgent action if climate change is to be addressed.

"We're increasing the global emissions at the rate of about 3 per cent every year now, and what we have to do is decrease emissions by 2 or 3 per cent every year," he said.

"That's the only way we are going to keep global temperatures down to something that might be safe.

"What he is asking [is] for us to not to do any more until the carbon capture and sequestration is in place."