Sentences with phrase «natural decline rates»

It is said this is required to fill the «supply gap» left by: i) increasing demand for oil; and ii) natural decline rates of currently producing wells / fields.

Not exact matches

Foremost is the significant decline in the natural rate of interest, or r * (r - star), over the past quarter - century to historically low levels.

Figure 1 shows that the natural rate declined substantially during the recession and did not start to recover until the end of 2014.

Coal's «natural» rate of decline may not be fast enough to meet long - term US carbon goals — for that, it will need a policy boost — but it is fast enough to render Trump's effort utterly futile.

This is hypothesized to happen for many different reasons, including a decline in the competitiveness of other economic sectors (caused by appreciation of the real exchange rate as resource revenues enter an economy, a phenomenon known as Dutch disease), volatility of revenues from the natural resource sector due to exposure to global commodity market swings, government mismanagement of resources, or weak, ineffectual, unstable or corrupt institutions (possibly due to the easily diverted actual or anticipated revenue stream from extractive activities).

Coal consumption, in particular, saw steep declines by dropping 18 percent, while natural gas use dipped just 1 percent, versus 2015 rates.

Bat populations are generally susceptible to decline because of low reproductive rates, and many species congregate at a limited number of locations during critical stages of their natural history cycle (i.e. hibernacula and maternity colonies).

Using historical data from horizontal wells in the Barnett Shale formation in North Texas, Tad Patzek, professor and chair in the Department of Petroleum and Geosystems Engineering in the Cockrell School of Engineering; Michael Marder, professor of physics in the College of Natural Sciences; and Frank Male, a graduate student in physics, used a simple physics theory to model the rate at which production from the wells declines over time, known as the «decline curve.»

The average rate of natural decline in growth hormone production is approximately the same for every adult, but everyone lives a different life.

Natural HGH production declines after puberty, and the rate of decline accelerates as the person ages (environmental and lifestyle factors exacerbate this decline)-LSB-...]

The researchers argue that the rate of decline of mid-packers is a better way of judging «natural» aging processes compared to the outliers who set age - group world records.

The Bookseller's editor Philip Jones attributed the decline to «a natural slowing down of growth and adoption rates» in digital, along with a slowdown in sales of Kindles.

Recognizing subtle signs early on can slow the rate of decline, but at the end of the day, ageing and death are natural processes and unlike humans, cats do not seem to fear the end.

Recognising subtle signs early on can slow the rate of decline, but at the end of the day, ageing and death are natural processes and unlike humans, cats do not seem to fear the end.

Conservation Status According to the IUCN, (International Union for Conservation of Nature and Natural Resources), this species is listed as Least Concern in view of its wide distribution, presumed large population, tolerance of a broad range of habitats, occurrence in a number of protected areas, and because it does not appear to be under threat and is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.

And if cycles 24 and possibly 25 are below normal, someone has to explain «natural variability» so that declines in either absolute temperature or rate of increase don't serve to discredit the overall «increases in CO2 level cause increases in global temperature».

Clearly, the loss of biodiversity (estimated at thousands of times the natural backgroud rate), the number of well known species that are threatened (10 - 40 % depending on taxonomic group), the loss of 10,000 - 30,000 genetically distinct populations per day (see Hughes et al., 1997) massive declines of groundwater, soil productivity and fertility, etc. as well as the fact that human activities now impact biogeochemical cycles over huge spatial scales is sufficient evidence that our species is living off of natural capital, rather than income.

As Bryce points out, shale natural gas wells deplete at a very fast rate: «The new shale gas wells... have steep decline curves, meaning that output from some wells may fall by 80 to 90 percent during the first year of production.»

With the recent decline in solar flux and the shift to cool phases of ocean oscillations, natural climate change suggests that although glacier retreat and sea level rise will likely continue over the next few decades, the rates of sea level rise and glacier retreats will slow down.The next decade will provide the natural experiment to test the validity of competing hypotheses.

Assume that some of the 0.4 K was quite natural and this is turning around — thus the rate of warming declines in 21st century from the 0.07 K / decades of the 1944 to 1998 period.

Without extra investment to raise production, the natural annual rate of output decline is 9.1 per cent, the International Energy Agency says in its annual report, the World Energy Outlook, a draft of which has been obtained by the Financial Times.

The take up rate would stop the natural increase in electricity generation required for increasing numbers of dwellings and in several years their would be a decline in electricity output from the coal fired power stations to equal or match that required by industry and commerce.

Unfortunately, the studies done thusfar show that the rate of natural sinks» carbon sequestration ability is declining, not rising, as our planet warms and our CO2 concentrations rise.

(Interesting side note, this rate and also the absolute CO2 emission from electricity generation in NY state has declined substantially over the past 30 years — mostly due to a shift from coal to natural gas.)

The study also suggests that a natural explanation for the declining win rate is greater ideological distances between the court's center and recent presidents.

Insurers have historically responded to natural disasters by raising insurance rates, reducing coverage, and / or declining to write new or renewal policies.