Showing posts with label atmosphere. Show all posts
Showing posts with label atmosphere. Show all posts

Sunday, September 14, 2014

Why Peak Oil Refuses To Die

Perhaps you’ve seen one of the recent barrage of articles claiming that fears of an imminent peak and decline in world oil production have either been dispelled (because we actually have plenty of oil) or are misplaced (because climate change is the only environmental problem we should be concerned with). I’m not buying either argument.

Richard Heinberg

Why? Let’s start with the common assertion that oil supplies are sufficiently abundant so that a peak in production is many years or decades away. Everyone agrees that planet Earth still holds plenty of petroleum or petroleum-like resources: that’s the kernel of truth at the heart of most attempted peak-oil debunkery. However, extracting and delivering those resources at an affordable price is becoming a bigger challenge year by year. For the oil industry, costs of production have rocketed; they’re currently soaring at a rate of about 10 percent annually. Producers need very high oil prices to justify going after the resources that remain—tight oil from source rocks, Arctic oil, ultra-deepwater oil, and bitumen. But oil prices have already risen to the point where many users of petroleum just can’t afford to pay more. The US economyhas a habit of responding to oil price hikes by swooning into recession, and during the shift from $20 per barrel oil to $100 per barrel oil (which occurred between 2002 and 2011), the economies of most industrialized countries began to shudder and stall. What would be their response to a sustained oil price of $150 or $200? We may never know: it remains to be seen whether the world can afford to pay what will be required for oil producers to continue wresting liquid hydrocarbons from the ground at current rates. While industry apologists who choose to focus only on the abundance of remaining petroleum resources claim that peak oil is rubbish, the market is telling Houston we have a problem.

Meanwhile some environmentalists have abandoned the subject of peak oil because they believe it’s just not relevant. For them, climate change is the only thing that matters. Society must deal with its collective carbon habit by going cold turkey on all fossil fuels. We can make the needed energy transition through the strategies of substitution and efficiency. Develop low-carbon energy sources (solar and wind, possibly nuclear), and use energy smarter! Electrify transport with battery-powered cars! Get with the program and stop wasting time on side issues!

Like the abundant-resource argument, this line of thinking proceeds from an unassailable premise. Anthropogenic climate change is indeed the nastiest, gnarliest environmental issue humanity has ever faced. The potential consequences stretch centuries or millennia into the future and imperil not just humanity, but thousands or millions of other species. But peak oil won’t go away just because it’s an inconvenient distraction from addressing that gargantuan issue. In fact, the two problems are closely linked and society will need to address both by way of a realistic, comprehensive strategy. I’ll get back to that point toward the end of this essay.

Is the necessary transition to renewable energy a simple matter of politics and regulation, as many climate campaigners seem to suggest? Hardly. Transitioning the electricity sector is a huge task in itself (the variability of wind and solar power implies soaring costs for energy storage, capacity redundancy, and grid upgrades once these sources start to provide a substantial portion of total electrical energy consumed). But liquid fuels pose an even bigger hurdle. Even the most advanced batteries do a poor job of storing energy when compared to oil; that’s why we’re unlikely ever to see electric airplanes, tractors, ships, 18-wheel trucks, or bulldozers. Some energy pundits tout compressed natural gas as a viable bridge fuel for transport, but that assumes sufficient availability and continued affordability of fracked shale gas—a prospect that seems highly unlikely in view of the results of Post Carbon Institute’s ongoing research into possible shale gas drilling locations and per-well production profiles. Hydrogen could be a niche fuel in some instances, but conversion from other energy sources (electricity or natural gas) to hydrogen implies energy losses, as does hydrogen storage. Further, if we were to make lots of H2 from water, using electricity, in order to fuel much of the transport sector, this would place an enormous extra burden on solar and wind, which already face a daunting job replacing coal and natural gas in the power generation sector.

How about energy efficiency? Good idea! We need to cut energy waste, and the folks at Rocky Mountain Institute have proposed many good ways of doing that. But, at the end of the day, efficiency is subject to the law of diminishing returns; so, while the tie between energy consumption and economic output is somewhat elastic, it cannot be severed. Specifically regarding oil: yes, many nations have reduced petroleum consumption in the last few years as a way of adapting to higher prices. But the fact that their economies have weakened suggests that efficiency gains have tended to lag behind oil price increases. Average vehicle fuel economy has improved, but not fast enough—so our main “efficiency” strategy has in reality simply been to travel less, and then deal with the withdrawal of economic benefits that cheap transport formerly provided.

None of this is trivial: oil is essential to the functioning of the modern industrial world. We use it for just about all transportation, which is key to trade. It’s also the fuel for construction, resource extraction (mining, fishing, forestry), and agriculture. Together, these sectors form the backbone of the real, physical economy of industrialized nations.

Again: the costs of oil production are rising and oil is stubbornly hard to substitute. As I argued in a recent book, this effectively spells the end of the historic period of rapid economic growth that began shortly after World War II. There is no way out; inevitably, society will become less mobile and—this should be cause for much greater concern—it will either produce less food or produce it in more labor-intensive ways.

Of course, peak oil and climate change aren’t the only looming challenges we should be concerned about. Economists rightly worry that the world is mired in far too much debt. Ecologists warn us about biodiversity loss, pervasive chemical pollution, and human overpopulation. Food system analysts try (usually in vain) to direct public attention toward the predicaments of topsoil degradation and depletion of aquifers from over-irrigation. Public health professionals caution us about the specter of pandemics as antibiotics lose effectiveness due to rapid microbial evolution. For city managers, the crumbling of water, sewerage, bridge, gas, and electricity grid infrastructure implies countless disasters just waiting to happen. I could go on. It’s all so overwhelming! Perhaps the only way to avoid crisis fatigue these days is simply to stop paying attention. But amid all these priorities and problems, peak oil refuses to die.

Those of us who insist on paying attention sooner or later get around to doing a form of mental triage. What are the worst crises that humanity faces over the long run? Which are the worst in the short term? What are the deeper issues, of which many problems are mere symptoms? This sorting process has led many systems thinkers to the conclusion that our species, in essence, faces an ecological dilemma of overpopulation, resource depletion, and environmental degradation resulting from a relatively brief period of rapid expansion enabled by a huge but temporary energy subsidy in the form of fossil fuels. We discovered buried treasure and went on a spending binge, adopting a way of life that cannot be supported long-term. Peak oil, climate change, mineral depletion, soil degradation, species loss, and the rest are justwords that blind men use to describe an elephant.

What we must do now is treat symptoms while keeping in mind the root disease, seeing why and how various crises are related. I have a couple of suggestions in this regard. One is that we begin to speak of peak oil and climate change as two sides of the same coin. The coin itself represents our reliance on fossil fuels and their unique energetic benefits. Both side-problems (the declining economic value of fossil fuels as they deplete, on one side, and the increasing environmental cost of burning them, on the other) demand that we reduce our fossil fuel dependency as rapidly as possible, even though that means sacrificing benefits we have come to depend on. If we maintain this holistic view of the situation, we’re more likely to understand that there is no way to keep eating our cake while having it too, either by continuing to burn fossil fuels of declining quality or by relying on new technology to fix what is actually an ecological problem. We can’t frack our way back to economic prosperity; nor can we unplug a coal plant, plug in a solar panel, and go on expanding population and consumption. We will have to adapt to the quantities and qualities of energy that are actually available from renewable sources alone, and that will mean changing the way we do just about everything.

Which brings me to the second, related suggestion. The constellation of challenges before us ensures that economic growth, as we have known it, is over, finished, kaput. That’s a terrible thing, in that the end of growth will almost certainly entail financial and political turbulence with real human casualties. But from the standpoint of diagnosis and treatment, it simplifies everything marvelously. If our impending crises stem from fossil-fueled expansion of population and consumption, their resolution surely starts with a coordinated, planned, and managed program of decarbonization and degrowth. We must reduce population and energy consumption from fossil fuels, while minimizing the human and environmental impacts of both past growth and the process of contraction. Easily said, not so easily done. But if civilization is to maintain itself in any recognizable form, this is what’s necessary. It would really help if those of us working at treating the various symptoms of the global meta-crisistogether acknowledged that growth is a core part of the underlying problem, not a solution, and that it is effectively over in any case.

Ignore peak oil (this could equally be said of climate change), and our view of the global problem-set immediately becomes distorted. We grasp at apparent solutions that turn out to be a useless waste of effort, or worse. Peak oil helps us understand what we’re faced with, and what we must do. It’s a gift wrapped in a curse. And it refuses to go away no matter how often it is pronounced dead.

By. Richard Heinberg

 

Wednesday, August 27, 2014

Geothermal Power Approaches 12,000 Megawatts Worldwide

In 2013, world geothermal electricity-generating capacity grew 3 percent to top 11,700 megawatts across 24 countries. Although some other renewable energy technologies are seeing much faster growth—wind power has expanded 21 percent per year since 2008, for example, while solar power has grown at a blistering 53 percent annual rate—this was geothermal’s best year since the 2007-08 financial crisis.

Geothermal power’s relatively slower growth is not due to a paucity of energy to tap. On the contrary, the upper six miles of the earth’s crust holds 50,000 times the energy embodied in the world’s oil and gas reserves. But unlike the relative ease of measuring wind speed and solar radiation, test-drilling to assess deep heat resources prior to building a geothermal power plant is uncertain and costly. The developer may spend 15 percent of the project's capital cost during test-drilling, with no guarantee of finding a viable site.

Once built, however, a geothermal power plant can generate electricity 24 hours a day with low operation and maintenance costs—importantly because there is zero fuel cost. Over the life of the generator, geothermal plants are often cost-competitive with all other power sources, including fossil fuel and nuclear plants. This is true even without considering the many indirect costs of fossil- and nuclear-generated electricity that are not reflected in customers’ monthly bills.

The top three countries in installed geothermal power capacity—the United States, the Philippines, and Indonesia—account for more than half the world total. California hosts nearly 80 percent of the 3,440 megawatts of U.S. geothermal capacity; another 16 percent is found in Nevada.

Despite having installed more geothermal power capacity than any other country, the United States currently generates less than 1 percent of its electricity from the earth’s heat. Iceland holds the top spot in that category, using geothermal power for 29 percent of its electricity. Close behind is El Salvador, where one quarter of electricity comes from geothermal plants. Kenya follows at 19 percent. Next are the Philippines and Costa Rica, both at 15 percent, and New Zealand, at 14 percent.

Indonesia has the most ambitious geothermal capacity target. It is looking to develop 10,000 megawatts by 2025. Having only gained 150 megawatts in the last four years, this will be a steep climb. But a new law passed by the government in late August 2014 should help move industry activity in that direction: it increases the per-kilowatt-hour purchase price guaranteed to geothermal producers and ends geothermal power’s classification as mining activity. (Much of Indonesia’s untapped geothermal resource lies in forested areas where mining is illegal.) Even before the new law took effect, geothermal company Ormat began construction on the world’s largest single geothermal power plant, a 330-megawatt project in North Sumatra, in June 2014. The plant should generate its first electricity in 2018.

Indonesia is just one of about 40 countries that could get all their electricity from indigenous geothermal power—a list that includes Ecuador, Ethiopia, Iceland, Kenya, Papua New Guinea, Peru, the Philippines, and Tanzania. Nearly all of them are developing countries, where the high up-front costs of geothermal development are often prohibitive.

To help address this mismatch of geothermal resources and funds, the World Bank launched its Global Geothermal Development Plan in March 2013. By December, donors had come up with $115 million of the initial $500 million target to identify and fund test-drilling for promising geothermal projects in the developing world. The Bank hopes that the experience gained from these projects will lead to lower costs for the geothermal industry overall. This would be good news on many fronts—simultaneously reducing energy poverty, air pollution, carbon emissions, and costly fossil fuel imports. More

 

Saturday, April 5, 2014

Exxon Mobil's response to climate change is consummate arrogance

Monday saw the release of the latest climate report from the planet’s scientists.Predictions of famine, flood, and so on – mostly what we already knew, in even more striking language.

But Monday also saw the release of another document somewhat less expected, and probably at least as important in the ongoing battle over the future of the atmosphere and hence all of us who live in its narrow envelope.

Exxon Mobil said: 'we are confident that none of our hydrocarbon reserves are now or will become ‘stranded''

Here’s the backstory. For 18 months now some of us have been campaigning for colleges, churches, cities and the like to sell their shares in fossil fuel companies, on the grounds that their business plans call for burning far more carbon than scientists believe the planet can safely handle. It’s become the fastest growing divestment movement in history — but some have tried to reach out to the industry and reach a middle ground instead, hoping to reform them instead of simply trying to break their power.

Profound thanks are due, then, to those shareholder activists who urged “constructive engagement” with the oil, gas and coal barons.

Because those organisations, groups like As You Sow, CERES, and the Interfaith Center on Corporate Responsibility, managed in very short order to get Exxon Mobil, the leader of the fossil fuel industry, to show its cards. In fact, in a truly historic moment, Exxon Mobil turned over the whole deck — and to its credit it showed it has nothing up its sleeve, no tricky rhetoric or sleight of hand. Just endless amounts of oil and gas.

On Monday the company issued two reports, in formal response to a shareholder resolution that demanded they disclose their carbon risk and talk about how they planned to deal with the fact that they and other oil giants have many times more carbon in their collective reserves than scientists say we can safely burn.

The company said that government restrictions that would force it to keep its reserves in the ground were “highly unlikely,” and that they would not only dig them all up and burn them, but would continue to search for more gas and oil — a search that currently consumes about $100 million of its investors’ money every single day. “Based on this analysis, we are confident that none of our hydrocarbon reserves are now or will become ‘stranded,’” they said.

This is an honest reply. It is as honest as the report that emerged the same day from the world’s climate scientists, which demonstrated that if Exxon Mobil and its ilk keep their promise to dig up their reserves and burn them, then the planet will no longer function effectively.

Some of us, cynically, thought all along that this would be Exxon’s posture. The company, after all, poured millions into denying climate science when that was still possible. That’s why we’ve been calling for divestment.

We’ve never thought that there was a small flaw in their business plan that could be altered by negotiation; we’ve always thought their business plan was to keep pouring carbon into the atmosphere. And indeed Exxon’s statements are easy to translate: “We plan on overheating the planet, we think we have the political muscle to keep doing it, and we dare you to stop it.” And they’re right — unless we build a big and powerful movement, they’ll continue to dominate our political life and keep change from ever taking place.

So now, with that information clearly on the table, it’s time for college boards and foundation heads, church denominations and city mayors to act and act firmly. By divesting — by announcing that they are breaking ties with these companies — they will begin the process of politically bankrupting them. Of taking away the social license that allows them to act with such consummate arrogance, on the very day that the planet’s scientists laid bare the impact of climate change on everything from crop yields to civil wars.

It’s never fun to see one’s cynicism confirmed. But Monday was a day for reality, on the scientific front but also the political, economic, and corporate.

The only open question left is what we’re going to do about it. More