Sentences with phrase «increases over the past century»

This once important lake has seen its problems grow steadily worse as population and water use have increased over the past century.

«They have done a less convincing job matching malaria decline with climate change, besides noting that temperatures have increased over the past century,» wrote Lafferty in an e-mail.

Although the overall high school completion rates have increased over the past century, schools still face the challenge of how to prevent students...

Or the increase of 0.6 K over the past century may have been caused for at least for 33 % by solar up to maybe over 80 %, if one assumes a 1 W / m2 TOA solar energy increase over the past century.

Now the earth's population has been increasing and further the degree of urbanization has been increasing over the past century.

The number and intensity of storms in North Carolina has been steadily increasing over the past century.

Not exact matches

Over the past century, life expectancy has been increasing primarily because of the development of effective medicines.

«The early 20th century got a lot of flooding,» but only 25 percent of the increase in flood magnitude over the past century can be explained by those climate patterns, Munoz says.

The strength of cannabis has been increasing over the past half century.

While average life expectancy has been rising steadily in most countries over the past century, new research led by the Centre for Addiction and Mental Health (CAMH) shows that life expectancy declined significantly and rapidly in three countries where policy changes increased access to prescription opioids, alcohol or illicit drugs.

Over the past nearly two centuries, Finland's average temperatures have increased by more than 2 degrees Celsius

John R. Wilmoth, a demographer at the University of California, Berkeley, has collected a wealth of data on humankind's increasing longevity over the past two centuries.

Previous research has shown the tropical Pacific has warmed over the past century due to increased greenhouse gas emissions.

Terrestrial ecosystems have encountered substantial warming over the past century, with temperatures increasing about twice as rapidly over land as over the oceans.

The team found that storm force has indeed increased over time, especially during the past century.

The researchers have predicted that increasing smog would prevent as much as 263 billion metric tons of carbon from being taken out of the atmosphere by plants over the past and coming century, though this depends on how tropical plants respond to O3 pollution.

Dlugokencky, in an e-mail, wrote there have been «no significant increases in Arctic emissions over the past few decades» and that it would take «centuries» for warming to affect methane hydrate — bearing sediments.

«There's a perception that jellyfish numbers are exploding in the world's oceans,» says marine scientist Rob Condon of the Dauphin Island Sea Lab in Alabama, «but there's no real evidence for a global increase in jellyfish over the past two centuries.»

It's the ocean «These small global temperature increases of the last 25 years and over the last century are likely natural changes that the globe has seen many times in the past.

seems to be incompatible with the statement from his Annual review paper from 2000 (see abstract below) that: «The average surface temperature of the continents has increased by about 1.0 K over the past 5 centuries; half of this increase has occurred in the twentieth century alone.»

Over the past century, this increase in TSI is responsible for about 15 - 20 % of global warming (Meehl 2004).

It requires that the Sun's brightness increased more in the past century than at any time in the past millennium, including over the past 30 years, contrary to the direct space - based observations.

The small increase in CO2 from about 0.03 % to 0.04 % over the past century has likely produced some small warming, probably about 0.4 °C.

These medicines and innovations have increased life expectancy by more than 30 years over the past century.

Despite the magnitude of this rise, no islands have been lost, the majority have enlarged, and there has been a 7.3 % increase in net island area over the past century (A.D. 1897 — 2013).»

Teacher salaries have increased more than 42 percent in constant dollars over the past half century, while educators» working conditions, health plans, and retirement arrangements have become ever more commodious.

Burke blames the national trend of lower scores on «increasing federal intervention over the past half - century... the resulting burden of complying with federal programs, rules, and regulations, have created a parasitic relationship with federal education programs and states, and is straining the time and resources of local schools.

Amid this dramatic shift, another sea change was afoot: As seen in the accompanying graphic, «The Gap Between Life Expectancy and Retirement Ages,» over the past half century the average life expectancy has increased significantly while the average retirement age has decreased.

Over the past century, artists have embraced an ever - increasing array of subjects, processes, and materials.

Even the IPCC does not concur, stating that the «Current datasets indicate no significant observed trends in global tropical cyclone frequency over the past century and it remains uncertain whether any reported long - term increases in tropical cyclone frequency are robust.»

While the observed Antarctic temperatures rose by about 0.4 degrees Fahrenheit (0.2 degrees Celsius) over the past century, the climate models simulated increases in Antarctic temperatures during the same period of 1.4 degrees F (0.75 degrees C).

While particulate emissions over the Western world decreased since the mid-1970's, the emissions in developing countries increased rapidely in the past halve century.

It supports the hockey - stick representation of shallow fluctuations of climate over the past 1000 years and points to the sudden «unprecedented» increase in 20th century temperatures as evidence that increased CO2 levels are the main contributory factor.

Moreover, greenhouse gas concentration increases of the magnitude observed over the past two centuries have in the past occured only taken place on timescales of millions of years.

The subsurface temperatures also indicate that Earth's mean surface temperature has increased by about 1.0 degrees C over the past five centuries.

-- I calculated potential intensity trends over the period 1980 - 2012 & The disparity between the reanalysis potential intensity trends over the past 30 years and the projected trends over this century suggests either that most of the observed increase in potential intensity (and actual intensity of high category storms) is due to natural variability,....»

seems to be incompatible with the statement from his Annual review paper from 2000 (see abstract below) that: «The average surface temperature of the continents has increased by about 1.0 K over the past 5 centuries; half of this increase has occurred in the twentieth century alone.»

The current average surface temperature is ~ 16C, an increase of ~ 1C over the past century.

«Century of Data Shows Intensification of Water Cycle but No Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past cCentury of Data Shows Intensification of Water Cycle but No Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past increase in the frequency or intensity of tropical storms or floods over the past centurycentury.

As a result, the Earth has warmed at an alarming rate over the past century, with average temperatures increasing by more than 0.8 °C (1.5 °F).

Solar activity has been flat over the past half century, during which time global surface temperatures increased over a half degreee Celsius.

4) Over this period (the past two centuries), the global mean temperature has increased slightly and erratically by about 1.8 degrees Fahrenheit or one degree Celsius; but only since the 1960's have man's greenhouse emissions been sufficient to play a role.

Tropical land - surface precipitation measurements indicate that precipitation likely has increased by about 0.2 to 0.3 % / decade over the 20th century, but increases are not evident over the past few decades and the amount of tropical land (versus ocean) area for the latitudes 10 ° N to 10 ° S is relatively small.

I blame the Greens and environmentalists for causing tens of millions of deaths through banning DDT, causing food price rises and increasing food poverty though their advocacy of biofuels and, importantly, causing the world's CO2 emissions to be about 10 % to 20 % higher now than they would have been if not for their anti-nuclear activism over the past half century.

On multi-decadal timeframes, GH gas forcing and the PDO / AMO combination have been having fairly even in their relative forcing over the past century, but the GH gas forcing is growing so large that it now dominating these longer - term natural variations... so the kicker is that the rapidly increasing GH gases, now at their highest levels in millions of years, are very likely influencing the nature of ENSO, PDO, AMO, and other formerly «natural» cycles.

As far as we know, the «airborne fraction» (percentage of emitted CO2 remaining atmospheric) has not been changing greatly over the past century, and if any change is occurring, the fraction is perhaps increasing very slightly due to greater saturation of the oceanic sink.

On average in the United States, the amount of rain falling during the heaviest 1 percent of rainstorms has increased nearly 20 percent during the past 50 years — almost three times the rate of increase in total precipitation.4, 5 The Midwest saw an even larger average increase of 31 percent, surpassed only by the Northeast (at 67 percent).4 Scientists attribute the rise in heavy precipitation to climate change that has already occurred over the past half - century.6

If fossil fuel consumption is to blame, and if it continues to track the exponential growth rate of the past century, it stands to reason that the temperature increase over the next century will be considerably more than over the previous one.

While there was no apparent change in drought duration in the Midwest region as a whole over the past century, 90 the average number of days without precipitation is projected to increase in the future.

According to Editor Alan Moran in a post at Catallaxy Files blog, Anthony Watts's contribution is to illustrate «the trivial level of temperature rise that has occurred over the past century (with no increase in the past eighteen years).