Why the New EIA Forecast Is Unrealistic
The Energy Information Administration (EIA) of the U.S. Department of Energy has just released its Annual Energy Outlook (AEO) 2018, with forecasts for American oil, gas and other forms of energy production through mid-century. As usual, energy journalists and policy makers will probably take the document as gospel.
That's despite the fact that past AEO reports have regularly delivered forecasts that were seriously flawed, as the EIA itself has acknowledged. Further, there are analysts inside and outside the oil and gas industry who crunch the same data the EIA does, but arrive at very different conclusions.
The last few EIA reports have displayed stunning optimism regarding future U.S. shale gas and tight oil production, helping stoke the notion of U.S. "energy dominance." No one doubts that fracking has unleashed a gusher of North American oil and gas on world markets in the past decade. But where we go from here is both crucial and controversial.
The most comprehensive critiques of past AEO forecasts have come from earth scientist David Hughes, a Fellow of Post Carbon Institute (note: I, too, am a Post Carbon Institute Fellow). Since 2013, Hughes and PCI have produced annual studies questioning EIA forecasts, based on an analysis of comprehensive play-level well production data. Their latest report, a critical look at AEO2017, is just out.
"Shale Reality Check: Drilling Into the U.S. Government's Rosy Projections for Shale Gas & Tight Oil Production Through 2050" explores four big questions crucial to the realization of the EIA's forecasts:
1. How much of the industry's recent per-well drilling productivity improvement is a result of better technology, and how much is due to high-grading the best-quality parts of individual plays? Over the past few years, industry has shown the ability to extract increased amounts of oil and/or gas from each well. This has been achieved in part by drilling longer horizontal laterals, tripling the amount of water and proppant (usually sand) used per unit of well length, and increasing the number of fracking stages. It is also in part a result of "high-grading," or focusing drilling on the best-quality parts of each play (termed "sweet spots" or "core areas"). The decline in average well productivity observed in parts of some plays, despite the application of enhanced technology, suggests that sweet spots there are becoming saturated with wells. When this happens, drillers must either move to lower-quality rock outside of sweet spots, or drill wells too close together, which results in well interference or "frac hits" and reduced well production.
2. Can technological advancement in the industry continue to raise productivity indefinitely? If, as the EIA suggests, improved technology will continue to increase well production, then perhaps per-well productivity can continue to grow for some time. However, based on the analysis of recent data, Hughes questions this (as does a team of MIT researchers). Well productivity is already declining in some plays, despite the application of enhanced technology, indicating that technology and high-grading have reached limits. Given uniform reservoir quality, improved technology allows the resource to be extracted more quickly with fewer wells, but it does not necessarily increase the overall amount of resource that can be recovered.
3. What will be the ultimate cumulative production from all U.S. tight oil and shale gas wells? Taking the above points into account, Hughes concludes from a detailed analysis of production data that the EIA is making extremely optimistic assumptions about ultimate production and long-term production rates in most shale plays.
Production over the long term is likely to be fraction of what the EIA is forecasting.
4. What about profitability? So far, overall, the industry has lost money on tight oil production, and shale gas has done little better. That's even with most recent drilling being focused in core areas. The industry and its investors assume that if productivity continues to increase, and oil prices rise, profitability will eventually materialize. But what levels of oil and gas prices would be required to profitably extract fuels in the large non-core areas that the EIA assumes will eventually be tapped after "sweet spots" are drilled and exhausted? The AEO offers little in the way of realistic analysis on this point.
Let's approach this subject another way. If you were an EIA analyst and you wanted to produce the most optimistic estimate possible of future U.S. oil and gas production, how might you go about it? You might do the following:
- Mischaracterize the source of recent productivity improvements (assume it's mostly technology, not high-grading);
- Extrapolate recent well productivity improvements far into the future, even though evidence suggests this is unwise;
- Assume that large areas that are not currently being drilled will be highly productive; and
- Ignore price and profitability.
Check, check, check and check.
Hughes figures, using EIA assumptions, that meeting the agency's projections for shale gas and tight oil through 2050 for the 88 percent of production that would come from major plays would require drilling and fracking over 1 million wells at a cost of $5.7 trillion (the remaining 12 percent would require .68 million wells at a cost of $4.1 trillion). The EIA's own estimate for all oil and gas (conventional, shale and offshore) is 1.3 million wells at a cost of $7.7 trillion. It would also consume countless billions of gallons of water and millions of tons of sand and chemicals. One might question the plausibility of this scale of expenditure of capital and physical resources. But even if the project were practically feasible, would it represent the best use of money in securing our energy future? And would the inevitable near- and long-term health and environmental impacts be somehow justified?
The EIA seems to assume that its audience consists of potential investors in struggling tight oil and shale gas companies, and that it speaks on behalf of those companies. That's not the proper role of a government agency. Taxpayers who fund AEO reports deserve realistic estimates of future production, costs of production and prices needed for profitable production. Otherwise, the agency's pronouncements will continue to resemble those of the Wizard of Oz: Be amazed! Be awed! But pay no attention to the man behind the curtain.
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Since even moderate-intensity workouts offer a slew of benefits, walking is a good choice for people looking to stay healthy.
How to Rock Your Walk<p>Walking isn't just fun and healthy. It's accessible.</p><p>"Walking is cheap," says Dr. John Paul H. Rue, a sports medicine doctor at <a href="https://mdmercy.com/" target="_blank">Mercy Medical Center in Baltimore</a>. "You can do it anywhere at any time; [it] requires little to no special equipment and has many of the same cardio benefits as running or other more intense workouts."</p><p>Want to up your walking game? Try the tips below.</p>
Use Hand Weights<p>Cardio and strength training can go hand-in-hand when you add weights to your walk.</p><p>A <a href="https://journals.lww.com/acsm-msse/Fulltext/2019/03000/Associations_of_Resistance_Exercise_with.14.aspx" target="_blank">2019 study</a> found that weight training is good for your heart, and <a href="https://www.mayoclinicproceedings.org/article/S0025-6196(17)30167-2/abstract" target="_blank">research</a> shows it reduces the risk of developing a <a href="https://www.healthline.com/health/nutrition-metabolism-disorders" target="_blank">metabolic disorder</a> by 17 percent. People with metabolic disorders have a higher chance of being diagnosed with high cholesterol, high blood pressure, and diabetes.</p><p>Rue suggests not carrying weights for your entire walk.</p><p>"Hand weights can give you an added level of energy burning, but you have to be careful with these because carrying [them] over a long period of time or while walking could actually lead to some overuse injuries," he says.</p>
Make It a Circuit<p>As another option, consider doing a circuit. First, put a pair of dumbbells on your lawn or somewhere in your home. Walk around the block once, then stop and do some bicep curls and tricep lifts before walking around the block again.</p><p>Rue recommends <a href="https://www.healthline.com/health/exercise-fitness/running-with-weights" target="_blank">avoiding ankle weights</a> during cardio workouts, as they force you to use your quadriceps rather than hamstrings. They can also cause muscle imbalance, according to the <a href="https://www.health.harvard.edu/staying-healthy/wearable-weights-how-they-can-help-or-hurt" target="_blank">Harvard Health Letter</a>.</p>
Find a Fitness Trail<p>Strength training isn't limited to weights. You can get stronger by <a href="https://www.healthline.com/health/bodyweight-workout" target="_blank">simply using your body</a>.</p><p>Often found at parks, fitness trails are obstacle courses with equipment for pullups, pushups, rowing, and stretches to build upper and lower body strength.</p><p>Try searching "fitness trails near me" online, checking out your local parks and recreation website, or calling the municipal office to <a href="https://calisthenics-parks.com/" target="_blank">find one</a>.</p>
Recruit a Friend<p>People who workout together stay healthy together.</p><p><a href="https://bmcgeriatr.biomedcentral.com/articles/10.1186/s12877-017-0584-3" target="_blank">One study</a> showed that older adults who exercised with a group improved or maintained their functional health and enjoyed their lives more.</p><p>Enlist the help of a walking buddy with a regimen you aspire to have. If you don't know anyone in your area, apps like <a href="https://www.strava.com/" target="_blank">Strava</a> have social networking features so you can get support from fellow exercisers.</p>
Try Meditation<p>According to the <a href="https://www.nccih.nih.gov/research/statistics/nhis/2017" target="_blank">2017 National Health Interview Survey</a>, published by the National Institutes of Health, meditation is on the rise, and for good reason.</p><p>Researchers <a href="https://pubmed.ncbi.nlm.nih.gov/29616846/" target="_blank">found</a> that mind-body relaxation practices can regulate inflammation, <a href="https://www.healthline.com/health/biological-rhythms" target="_blank">circadian rhythms</a>, and <a href="https://www.healthline.com/health/glucose" target="_blank">glucose</a> metabolism, as well as lower <a href="https://www.healthline.com/health/high-blood-pressure-hypertension" target="_blank">blood pressure</a>.</p><p>"Any form of exercise can be turned into a meditation of some type, either by the surroundings you are walking in, like a park or trail, or by blocking out the outside world with music on your headphones," Rue says.</p><p>You can also play a podcast or download an app like <a href="https://www.headspace.com/headspace-meditation-app" target="_blank">Headspace</a> that has a library of guided meditations to practice while you walk.</p>
Do Fartlek Walks<p>Typically used in running, fartlek intervals alternate periods of increased and decreased speed. These are <a href="https://www.healthline.com/nutrition/benefits-of-hiit" target="_blank">high-intensity interval training (HIIT)</a> workouts, which allow exercisers to accomplish more in less time.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0154075" target="_blank">One study</a> showed that 10-minute interval training improved <a href="https://www.healthline.com/health/metabolic-syndrome" target="_blank">cardiometabolic</a> health, or lowered the risk of heart disease, stroke, and diabetes, just as well as working out at a continuous pace for 50 minutes.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111489" target="_blank">Research</a> also shows that HIIT workouts increase muscle <a href="https://www.healthline.com/health/fast-twitch-muscles" target="_blank">oxidative</a> capacity, or the ability to use oxygen. To do a fartlek walk, try walking at an increased pace for 3 minutes, slow down for 2 minutes, and repeat.</p>
Gradually Increase Pace<p>A faster walking pace is associated with a lower risk of <a href="https://www.healthline.com/health/copd" target="_blank">chronic obstructive pulmonary disease (COPD)</a> and respiratory diseases, according to a <a href="https://pubmed.ncbi.nlm.nih.gov/30303933/" target="_blank">2019 study</a>.</p><p>Still, it's best not to go from a stroll to an Olympic-worthy power walk in a day. Instead, increase your pace gradually to prevent injury.</p><p>"Start by walking at a brisk pace for about 10 minutes per day, 3 to 5 days per week," Rue says. "Once you've done this for a few weeks, increase your time by 5 to 10 minutes per day until you get to 30 minutes."</p>
Add Stairs<p>You've likely heard that taking the stairs instead of an elevator is a way to add more movement into your daily routine. It's also a way to step up your walking. Stair climbing has been shown to <a href="https://www.sciencedirect.com/science/article/pii/S2211335519301123?via%3Dihub" target="_blank">decrease the risk of mortality</a> and can easily add a bit more challenge to your walk.</p><p>If you don't have stairs in your home, you can often find them outside a local municipal building, train station, or at a high school stadium.</p>
Is Your Walk a True Cardio Workout?<p>Not all walks are equal. A walk that's too leisurely may not provide enough burn to qualify as cardio. To see if you're getting a good workout, try to <a href="https://www.healthline.com/health/how-to-check-heart-rate" target="_blank">measure your heart rate</a> using a monitor.</p><p>"A target goal for a good walking workout heart rate is about 50 to 70 percent of your maximum heart rate," Rue says, adding that maximum heart rate is <a href="https://www.healthline.com/health/fitness-exercise/fat-burning-heart-rate" target="_blank">typically calculated</a> by 220 beats per minute minus your age.</p><p>You can also monitor how easily you can carry on a conversation while you walk to gauge your heart rate.</p><p>"If you can walk and carry on a normal conversation, that's probably a lower intensity walk," says Rue. "If you are slightly breathless but can still have a conversation, that's probably a moderate workout. If you are out of breath and can't talk normally, that's a vigorous workout."</p>
Takeaway<p>By shaking up your routine, you can add excitement to your workout and reap even more rewards than a basic walk provides. Increasing the pace and intensity of a workout will make it more effective.</p><p>Simply pick your favorite variation to add some spice to your next walk.</p>
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