Sentences with phrase «changes observed over»

Climate changes observed over recent decades are inconsistent with trends caused by natural forces but are totally consistent with the increase in human -... Learn More >>
The modelers got a good match to maps of the climate changes observed over the past century, but only if they included the effects of the gases, and not if they tried to attribute it all to the Sun.
The changes observed over the last several decades are likely mostly due to human activities, but we can not rule out that some significant part of these changes is also a reflection of natural variability.
Developing metrics to set short - term changes observed over decades or centuries in the context of long - term (several hundreds to thousands of years or more) variation in specific ecosystems
This requires comparing changes observed over decades and centuries to long - term ecological baselines of change interpreted from relevant prehistoric records — much as the climate community has done with comparing recent changes with prehistoric proxy data (Barnosky et al., 2012; Hadly and Barnosky, 2009).
A: Climate changes observed over recent decades are inconsistent with trends caused by natural forces but are totally consistent with the increase in human - induced heat - trapping gases.
When an EPA draft quoted the National Academy of Science conclusion that the changes observed over the last several decades are likely mostly due to human activities, CEQ objected because the above quotes are unnecessary and extremely harmful to the legal case being made.
Contours show spatial and spectral changes observed over 4 years time as shocks expand into interstellar gas and dust (more at CXC).
A: Climate changes observed over recent decades are inconsistent with trends caused by natural forces but are totally consistent with the increase in human - induced heat - trapping gases.
The lesson here is that changes observed over very short time intervals do not provide a reliable picture of how the climate is changing.
Humanity is the major influence on the global climate change observed over the past 50 years.
My opinion expressed elsewhere is that almost all the temperature changes we observe over periods of less than a century are caused by cyclical changes in the rate of energy emission from the oceans with the solar effect only providing a slow background trend of warming or cooling for several centuries at a time.
Extending the sea level record back over the entire century suggests that the high variability in the rates of sea level change observed over the past 20 years were not particularly unusual.
Human activities that release carbon dioxide and other greenhouse gases into the atmosphere are largely responsible for the climate change observed over the last century.
In contrast to the above, it is entirely possible that much, perhaps most, of the climate change observed over the last century or so is natural.

Not exact matches

After observing dozens of board meetings over the last fifteen years and interviewing hundreds of directors, the dialogue and behavior changes with women in boardrooms.
In recent months, I've emphasized that despite prospects for a prolonged recession which I would expect to keep the stock market in a very wide trading range (probably for the bulk of 2009), long - term investors should not overlook the sea - change in valuations and security durations we've observed over the past 15 months.
Median home price change expectations decreased from 3.3 % in August to 3.1 %, remaining within the narrow 3.0 % to 3.3 % band observed over the last 12 months, and staying well below the readings in the previous two years.
By observing the movement in traditional metrics over time, we have also examined how the use of a variety of other non-traditional metrics have changed over the same period.
Evolution is simply the observed changes in species over time as they adapt and improve to survive.
The document criticizes «doctrinal or disciplinary security,» «an obsession with the law,» «punctilious concern for... doctrine,» «dogmatism,» «hiding behind rules and regulations,» and «a rigid resistance to change,» while reprimanding those who «give excessive importance to certain rules,» overemphasize «ecclesial rules,» believe that «doctrine... is a closed system,» «feel superior to others because they observe certain rules,» have «an answer for every question,» wish to «exercise a strict supervision over others» lives,» «long for a monolithic body of doctrine guarded by all and leaving no room for nuance,» believe that «we give glory to God... simply by following certain ethical norms,» and «look down on others like heartless judges, lording it over them and always trying to teach them lessons.»
Over the years, I have observed the bulk of the Evangelical fleet drift — and then in desperation for some greater motivation, change fuels — from the open - arms gasoline of evangelism meetings, to the super-sparks of charismatic gifts, to the sluggish - diesel of homogenized Biblical theology, to the stuttering - and - sparkle fuel of Christian music, to the nitro - flamed - fuel of hating gays, and now to the turbo - charged hatred of illegal aliens at home and Muslims overseas.
During the debate over «biblical inerrancy» that raged among evangelicalism for several years in the late 1970s, I remember someone observing that Harold Lindsell's 1976 book, The Battle for the Bible, which pretty much got that debate going, was more a theory of institutional change than it was about theology as such.
The changes are extremely gradual, they can not be observed over the short time span of human civilization so far, and the term «species» is a man - made concept to make categorization of life forms convenient... it is not an immutable feature of the natural world as you seem to think it is.
Many of my beliefs have changed over the years by simply learning more, observing more, listening more... nothing traumatic caused these changes.
For them microevolution is the change we have observed over just the short span of a human lifetime or within a few centuries.
Gave, Just observing nature it is obvious it evolved / changed over time.
The notion that purely random mutation preserved in the population by natural selection would produce a gradual change, which over time would create the complexity of life we now observe (phyletic gradualism).
This kind of fasting does not mean ignoring hunger pains or cravings but listening carefully to them, observing how they change over time, looking at the relationship of mind and body in the experience of hunger and in the experience of food.
And let's remember that evolution, while it's a theory, is a theory about the beginning and the transformation of life based on things we have observed, namely that cells change and mutate and that those mutations can produce cells that are unique and new, and that it would follow that it's possible for molecules to form into single - celled organisms which mutate and combine into multi-cellular organisms which mutate, adapt, and grow over time into new forms of life.
«The city of Cleveland and the entire market has been changing over the last two years,» he observes.
The approach of Denny's corporate leaders to franchisees has changed over recent years, Lafreeda observes.
Many changes observed in the environment are long term, occurring slowly over time.
For over 25 years, Mass Audubon has analyzed the land use changes in Massachusetts and observed how the landscape has been transformed by new residential and commercial development in our Losing Ground report.
The increased socioeconomic inequalities in breastfeeding observed in the intervention group supports the argument that population intervention strategies could inadvertently exacerbate, rather than mitigate, socioeconomic inequalities, particularly when the intervention aims to change individual behaviours rather than targeting «upstream» structural changes.25 Our results are also compatible with an observational study from Brazil reporting that breastfeeding rates increased first among the socioeconomically better - off, followed by increases among the poor, over a 20 - year period of active breastfeeding promotion campaigns in Brazil.26
Attempts to explain the increase in PPH rates by taking into account changes in the observed risk factors for PPH over time can not explain the rise in rates [5, 6].
What has been called the modern synthesis of the two fields emerged in the 1940s with the idea that the sorts of genetic differences you could observe in populations, right out your window, when compounded and extrapolated over vast periods of time, could account for the large - scale changes we see in the fossil record.
By observing lizards in the field, Sinervo and a colleague showed that the number of lizards employing the strategies of aggression, cooperation, and deception fluctuated over the course of 6 years, the dominant strategy changing as new lizards were born.
Using Spitzer, scientists monitored brightness changes in six brown dwarfs over more than a year, observing each of them rotate 32 times.
In particular, the modelers could now reproduce in detail the pattern of warming, changes in rainfall, etc. actually observed in different regions of the world over the past century.
Even more significantly, the observed changes in the amount of carbon over time don't fit the volcanic model.
Given widespread observation of habitat change and individual species declines — and knowing that extinction rates are many times higher than normal — the scientists predicted a drop, over time, in the number of species observed in most of these studies.
► In this week's Science Careers - produced Working Life column Mildred Dresselhaus, an 83 - year - old physicist at MIT, reflects on gender inequality in science, including changes she has observed over the years and the work that still needs to be done.
«Our timing was serendipitous, as it meant we were able to see changes in microbial processes over an extremely fast melting season and observe a process from start to end across all habitats on a glacier surface.
Their model is the first to accurately anticipate observed changes in onshore and offshore sandbar movements, and it did so successfully over 45 days.
A few of the main points of the third assessment report issued in 2001 include: An increasing body of observations gives a collective picture of a warming world and other changes in the climate system; emissions of greenhouse gases and aerosols due to human activities continue to alter the atmosphere in ways that are expected to affect the climate; confidence in the ability of models to project future climate has increased; and there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.
That may change within 10 years or so, when astronomers hope to succeed in hooking up telescopes from all over the world that observe the universe at wavelengths shorter than 1 millimeter.
The researchers then observed how the frequency of resistance genes changed over six generations of mosquitoes — a process, biologists refer to as «microevolution.»
If so, observing Pluto will help explain how the chemistry of planets changes over time — and in particular, how Earth developed a composition that is friendly to life.
«What we're seeing is a star that is the cosmic equivalent of «Dr. Jekyll and Mr. Hyde,» with the ability to change from one form to its more intense counterpart with startling speed,» said Scott Ransom, an astronomer at the National Radio Astronomy Observatory (NRAO) in Charlottesville, Va. «Though we have known that X-ray binaries — some of which are observed as X-ray pulsars — can evolve over millions of years to become rapidly spinning radio pulsars, we were surprised to find one that seemed to swing so quickly between the two.»
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