Sentences with phrase «present warming trends»

Depicting life in a not - too - distant future shaped by already present warming trends, the report warns that even 20 to 30 years from now, shifting rain patterns could leave some areas under water and others without enough water for drinking, irrigation or power generation.

Just prior to the 2009 COP15 climate summit in Copenhagen, then UK prime minister Gordon Brown told the world: «We should never allow ourselves to lose sight of the catastrophe we face if present warming trends continue.

The number of governments, private corporations, organizations, scientists and technologies concerned with meeting the challenge of climate change and global warming have increased beyond expectations in the past decade and continues to create an army of «green fighters,» like Green Peace, but the impact on large numbers of people have not reached a critical mass to reverse the present warming trends.

We can, therefore, compare the present warming trends (and warming / cooling cycles; think about the «mini-ice age» of the 19th Century) with the geological record and make statistical extrapolations about changing rates and develop hypotheses about causes (whichh, basically, is what current climate scientists have been doing).

«Nobody knows how much of the present warming trend might be a natural phenomenon».

But then you didn't read the graphs the same for the present warming trend, you cherry picked a starting point that wasn't the lowest.

Satellite records, the best available information we have, show the present warming trend — half a degree Celsius by century — is well within the range shown for the last few hundred years.â $ ™

As the present warming trend is expected to continue, global mean sea level will continue to rise.

The work calculated the present warming trend correctly through 2007 and projected 2008, 2009, 2010, and appears to project 2011 correctly as well.

Dennis «A&L» Dutton, who is sceptical about the idea that the present warming trend is mostly anthropogenic, has got together with Douglas Campbell, a philosopher / biologist / computer scientist who isn't.

Transmission began to decline only in the 19th century, when the present warming trend was well under way.»

Not exact matches

Flash forward to the present day and spring weather outlooks are pointing towards fairly consistent warming trends and an even bud break.

At least half of current vegetated areas are predicted to shift to a different type of vegetation class, with a general trend of now - present grasses and small shrubs yielding to larger shrubs and trees as the climate warms, the scientists said.

In fact, the CRF curves presented by some of the key cosmic - ray hypothesis proponents, Marsh & Svensmark, do not exhibit any trend, yet it has been claimed that CRF is responsible for the most recent warming (Marsh & Svensmark say that the wiggles correlate, but don't discuss the [or lack of] observed trends).

But clear warming trends are present in the early and late 20th century.

Projecting the 165 - year instrumental trends suggests within 500 years temperatures will reach 2.5 to 3.5 degrees C warmer than present day.

a) present day warming trends and interglacial plateau trends.

They observed a Holocene cooling trend in the Antarctic of -0.26 to -0.40 degrees C / millennium for the past 1900 years prior to present day warming of the most recent 200 years.

In fact, the arctic trend from 1975 to the present is also demonstrably nonlinear, and a linear trend again underestimates the warming.

The thing that looks fishy is that the adjustments all tend to make past colder, present warmer and increase the trend.

What does happen in a giben month, year and sometimes decades is faster or slower warming for the given time period, but this does not reverse the warming trend or do anything to refute the dangers to health that GHG's present with.

You would be speaking of from the trend in temperature anomaly (warming) from 1979 to present being greater than either of the two shorter trends from 1979 to 1998 and from 1998 to present — if I understand you correctly.

As Manny is very aware, 1998 is the current record warmest year and a simple trend plotted from it to the present will always show a cooling trend... until the next record year.

The real question is whether topographical readings of the area were taken sometime in the 1940s to 1960s, when there was a sustained warming trend in the region comparable to the present.

This hiatus could persist for much of the present decade if the trade wind trends continue, however rapid warming is expected to resume once the anomalous wind trends abate.

3) In order to assert human causation, I would think the data would have to show that, for example, Rocky Mountain National Park had continued unabated to the present day the cooling trend established from approximately 1750 through 1850, while the Houston Ship Channel area exhibited the warming trend since the onset of industrial activity.

A valuable short paper that has been accepted for publication in Geophysical Research Letters (subscription required) makes a strong case against presenting any argument about human - driven global warming that's based on short - term trends (a decade or so).

I think you're asking whether there might be some kind of «time structures» (types of cycles, etc) present in addition to that of a global - warming trend.

http://humbabe.arc.nasa.gov/~fenton/ Note that this global warming as been studied by only one research team and presented in one article (to be compared to the thousands of articles studying climate trends on earth), based on partial satellite data, and there is a serious debate now amongst the planetologists community to determine if this is a persistent trend or if it will stop in a few years.

But despite the fact that August 1997 was shamelessly cherry - picked by David Rose because it gives the lowest warming trend to the present of any point before 2000, we can still see what would happen if we imposed the constraint that any fit needs to be continuous:

If, for example, we were to create a piece-wise continuous trend keeping your own trend, we'd find the 0.17 C decadal warming trend from your starting point preceded by an estimated warming of equal magnitude in the combined 125 prior years (beginning at a time where only 1/4 of the present day coverage existed, thus placing the entire 125 year warming more or less within the margin of statistical insignificance).

-- tendency of the * planet to warm — The UAH data is v5.4, v5.5 limits the recent deviance — «no hidden either warming or cooling jumps» reads awkwardly — «But despite the fact that August 1997 was shamelessly cherry - picked by David Rose because it gives the lowest warming trend to the present of any point before 2000» — It was picked to show 15 years, not the lowest trend.

EVERY revision of NASA data has had the effect of producing greater warming in the present and greater cooling of the past (increasing temperature trends where the raw data have none).

bozzza - The differences in the Arctic are perhaps 1/4 the ocean thermal mass as global ocean averages, small overall size (the smallest ocean), being almost surrounded by land (which warms faster), more limited liquid interchanges due to bottlenecking than the Antarctic, and very importantly considerable susceptibility to positive albedo feedbacks; as less summer ice is present given current trends, solar energy absorbed by the Arctic ocean goes up very rapidly.

The most statistics can tell us at present is that there does appear to be a genuine warming trend in figure A. Whether this trend is the effect of greenhouse gas emissions or of a natural fluctuation due to some as - yet - undiscovered mechanism can not be determined from an analysis of the global mean temperature alone.

We'll also be presenting the warming and cooling rates (the trends) on a zonal means (latitude average) basis.

Figure 8 presents model - data trend comparisons for the two warming periods since 1914 and the warming hiatus period from 1945 to 1975.

Figure A below, which graphs the global annual average temperature from 1861 to the present, does indeed seem to show a warming trend.1 But such data must be interpreted carefully.

By continuing this trend, we can make a rough guess for how near - future climate may develop if the forces driving global warming continue at their present rate.

The linear trend over all the data is not representative of the present rate of warming, nor does it represent the physics at work or indicate what the future will bring.

Since 1880, the year that modern scientific instrumentation became available to monitor temperatures precisely, a clear warming trend is present, though there was a leveling off between the 1940s and 1970s.

In part, this reflects the long - term trend towards global warming; however, it also reflects exceptional short - term weather conditions present during this period.

Have students compare the temperatures trends for the northern hemisphere (below; created by the Japanese Meteorological Society and published by the National Academy of Science in 1977) with the new global trends presented by NASA's Gavin Schmidt who argues 2014 was the warmest year on record.

The US CLIVAR Hurricane Working Group was formed to improve understanding of interannual variability and trends in the tropical cyclone activity from the beginning of the 20th century to the present and quantify changes in the characteristics of tropical cyclones under a warming climate.

«At present, governments» attempts to limit greenhouse - gas emissions through carbon cap - and - trade schemes and to promote renewable and sustainable energy sources are prob ¬ ably too late to arrest the inevitable trend of global warming,» the scientists write in a paper published online in the scientific journal, Nature Climate Change, on Monday, 14 October 2012.

BONN, 15 November, 2017 — By approaching 2100, a world set for 3.4 ˚C will, on present trends, probably be the reality confronting our descendants — slightly less warm than looked likely a year ago, analysts think.

In terms of explaining this period of warming, the stadium wave argues: 1910 - 1940 (warming), 1940 - 1975 (cooling), 1975 - 2001 (warming), 2002 - present (cooling)-- against a background secular warming trend.

Section 3.2.2.7 presents a spatial map of warming trends since 1979.

It seems to me that between 1980 and 94 there was little warming, but during the longer trend of 1980 to the present there has been a trend of about 1 C per century.

During the present Holocene man has already survived at least three periods of warming which by all indicators were warmer than present day trends.