Sentences with phrase «decade increase observed»

For the last 50 years, global temperature rose at an average rate of about 0.13 °C (around one - quarter degree Fahrenheit) per decade - almost twice as fast as the 0.07 °C per decade increase observed over the previous half - century.

Not exact matches

Substantial reductions in the extent of Arctic sea ice since 1978 (2.7 ± 0.6 percent per decade in the annual average, 7.4 ± 2.4 percent per decade for summer), increases in permafrost temperatures and reductions in glacial extent globally and in Greenland and Antarctic ice sheets have also been observed in recent decades.

To be more specific, the models project that over the next 20 years, for a range of plausible emissions, the global temperature will increase at an average rate of about 0.2 degree C per decade, close to the observed rate over the past 30 years.

«Southern right whale calf wounding by Kelp Gulls increased to nearly all over four decades: Once rare, wounds from Kelp Gulls observed on nearly all mothers and calves by the 2000s at Peniacutensula Valdeacutes, Argentina.»

One gap, associated with the antinodal region where no coherent peak is observed, increased with underdoping, a behavior known for more than a decade and considered as the general gap behavior in the underdoped regime.

The team's findings provide one possible mechanism for an observed increase in the concentration of dissolved organic carbon in the surface waters of North America and Europe during the last few decades, and have implications for management of water quality in coastal zones worldwide.

However, it says the observed changes in fire activity are in line with long - term, global fire patterns that climate models have projected will occur as temperatures increase and droughts become more severe in the coming decades due to global warming.

I want an answer to this, please: In order for the AR4 scneraio I mention to come true, the decedal increase in temp observed from 2000 - 2010 would need to jump 100 % to 700 % per decade to reach the modeled change.

Observed marked increases in drought in the past three decades arise from more intense and longer droughts over wider areas, as a critical threshold for delineating drought is exceeded over increasingly widespread areas.

As a consequence, their results are strongly influenced by the low increase in observed warming during the past decade (about 0.05 °C / decade in the 1998 — 2012 period compared to about 0.12 °C / decade from 1951 to 2012, see IPCC 2013), and therewith possibly also by the incomplete coverage of global temperature observations (Cowtan and Way 2013).

The team also compared the ice loss up until the mid-1980s to that observed by satellites over roughly the last decade and found that today the rate of ice loss is twice the 20th century average, mostly because of increased water runoff from the ice sheet's surface.

Hence, the observed marked increases in drought in the past three decades arise from more intense and longer droughts over wider areas, as a critical threshold for delineating drought is exceeded over increasingly widespread areas.

April 12, 2018 - Increase in the adoption of these instruments has been observed in last few decades owing to increase in research and development activities in nanoparticle based dosage form development and evolution of targeted drug deliveryIncrease in the adoption of these instruments has been observed in last few decades owing to increase in research and development activities in nanoparticle based dosage form development and evolution of targeted drug deliveryincrease in research and development activities in nanoparticle based dosage form development and evolution of targeted drug delivery system.

There were no significant trends in mean annual total precipitation or total precipitation affected area but we did observe a significant increase in mean annual rain - free days, where the mean number of dry days increased by 1.31 days per decade and the global area affected by anomalously dry years significantly increased by 1.6 % per decade.

Over the last several decades, the US has witnessed a marked increase in large wildfire frequency and duration with the greatest increases observed in the temperate coniferous forests of the Northern Rocky Mountains53, 54.

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.

«This increase in the government share of enrolments continues a trend first observed in 2015, and represents a reversal of the shift towards non-government schooling, observed for much of the past two decades,» Mr Collett said.

The significant difference between the observed decrease of the CO2 sink estimated by the inversion (0.03 PgC / y per decade) and the expected increase due solely to rising atmospheric CO2 -LRB--0.05 PgC / y per decade) indicates that there has been a relative weakening of the Southern Ocean CO2 sink (0.08 PgC / y per decade) due to changes in other atmospheric forcing (winds, surface air temperature, and water fluxes).

A (presumed) zero point something temperature increase just can not account for all these observed changes over the last decades.

There have been decades, such as 2000 — 2009, when the observed globally averaged surface - temperature time series shows little increase or even a slightly negative trend1 (a hiatus period).

The vertical fingerprint of the impact of increasing CO2 (warming troposphere, cooling stratosphere) was calculated in 1967 by Manabe and Wetherald, decades before it was observed.

Granted, it is «slow» right now, but the melting has been increasing quite substantially, and whereas the IPCC had been speaking in the neighborhood of a sea level increase of 50 cm, figures between one to two meters are becoming common as the result of observed changes, and with the nonlinear processes and resulting positive feedback, Jim Hansen has suggested that a sea level doubling per decade and increase of several meters (up to 5 m) by the end of the century is more realistic.

A new study co-authored by Francis Zwiers, the director of UVic's Pacific Climate Impacts Consortium, suggests that human - induced global warming may be responsible for the increases in heavy precipitation that have been observed over much of the Northern Hemisphere including North America and Eurasia over the past several decades.

Granted, it is «slow» right now, but the melting has been increasing quite substantially, and whereas the IPCC had been speaking in the neighborhood of a sea level increase of 50 cm, figures between one to two meters are becoming common as the result of the observed higher rates since, and with the nonlinear processes and resulting positive feedback, Jim Hansen has suggested that a sea level doubling per decade and increase of several meters (up to 5 m) by the end of the century is more realistic.

1) Here, we use a set of coordinated model experiments to confirm that the satellite - observed increase in upper - tropospheric water vapor over the last three decades is primarily attributable to human activities.

Using the very simplified exponential increase rate of 0.5 % per year as observed over the past two decades, one arrives at the same approximate level.

From the National Science Foundation: New Models Predict Dramatically Greener Arctic in the Coming Decades International Polar Year -(IPY) funded research predicts boom in trees, shrubs, will lead to net increase in climate warming A map of predicted greening of the Arctic as compared with observed distribution Credit and Larger Version Rising temperatures will lead...

Similarly, Matthew England and colleagues reproduced observed temperature trends by providing the model with the pronounced and unprecedented strengthening in Pacific trade winds over the past two decades — and the winds in turn lead to increased heat uptake by the oceans.

One of the problems with the EPA's Endangerment TSD is the nearly complete disregard of observed trends in a wide array of measures which by and large show that despite decades of increasing anthropogenic greenhouse gas emissions the U.S. population does not seem to have been adversely affected by any vulnerabilities, risks, and impacts that may have arisen (to the extent that any at all have actually occurred as the result of any human - induced climate changes).

The observed trend of 0.07 deg C per decade for the latest 15 year period is BELOW IPCC's «suggested global average temperature increases between about 0.15 °C and 0.3 °C per decade».

«Observational analyses have shown the width of the tropical belt increasing in recent decades as the world has warmed... we use a climate model with detailed aerosol physics to show that increases in heterogeneous warming agents — including black carbon aerosols and tropospheric ozone — are noticeably better than greenhouse gases at driving expansion, and can account for the observed summertime maximum in tropical expansion.

Temperatures on the Tibetan Plateau — sometimes called Earth's «third pole» — have warmed by 0.3 °C (0.5 °F) per decade over the past 30 years, about twice the rate of observed global temperature increases.

Over the last several decades, large temperature increases in winter have been observed over Siberia and Alaska.

The observed increase in global NPP over the past five decades is quite an accomplishment for the terrestrial biosphere, especially when one considers all the negative stories — nary a day goes by without notice of some environmental disaster (human - or naturally - caused) occurring somewhere in the world and wreaking havoc on nature.

We show that maximum rates of CO2 - induced warming are much more closely correlated with peak emissions rates, and that, for each additional GtC per year on the peak emission rate, we will observe a best - guess increase of 0.016 °C in the rate of warming per decade.

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.

If the hypothesis is that warming will increase at 1C per decade, and if we observe a cooling of -20 C in 10 years, then we can conclude that the estimate of 1 per decade is high.

The purpose of the teleconference was to increase knowledge among scientists and students of the observed increases in atmospheric carbon dioxide in recent decades, and especially to stimulate young scientists to undertake research on carbon dioxide - related problems.

The problem for me was to figure out whether the warming we observed in the past 3 or 4 decades was natural or caused by an increase in GHG's and to find out whether more CO2 is bad or beneficial.

This does not match the increase in CO2 concentration indicating that a source other than humans is the predominant source ffor the observed increase in atmospheric CO2 content which has been increasing at a near perfect linear rate of 2ppmv / year for the past decade.

The IPCC's predicted rate of increase in ocean heat content over the past decade or two has proven to be four and a half times greater than the observed rate of increase.

Figure 9.5 shows that simulations that incorporate anthropogenic forcings, including increasing greenhouse gas concentrations and the effects of aerosols, and that also incorporate natural external forcings provide a consistent explanation of the observed temperature record, whereas simulations that include only natural forcings do not simulate the warming observed over the last three decades.

Since 1895, the CONUS has observed an average temperature increase of 0.15 °F per decade.

Nonetheless, an upward trend in Atlantic and West Pacific tropical cyclone power dissipation in the past few decades — based on the frequency, duration, and intensity of observed storms — is well correlated with increases in sea surface temperature [16].

«Many studies - some of them more than three decades old - show that increasing CO2 has physiological effects on animals beyond those observed on skeletons.

The sea level is increasing by about 1.3 mm / year according to the data of the tide - gauges (after correction of the emergence or subsidence of the rock to which the tide gauge is attached, nowadays precisely known thanks to high precision GPS instrumentation); no acceleration has been observed during the last decades...»

The IPCC concluded that «It is extremely likely that human activities caused more than half of the observed increase in global mean surface temperature from 1951 to 2010» (0.08 to 0.14 °C per decade).

The observed general glacier retreat in the warming tropical Andes has increased significantly in recent decades (Francou et al., 2005).

The model, forced with observed SSTs, generally reproduces the observed pattern of precipitation trends in the central and western tropical Pacific, with increases in convective precipitation of up to 0.8 mm / day / decade.

States that a significant increase in salinity has been observed in recent decades in the 20N — 50N latitude band of the Atlantic ocean, although changes at sub ‐ polar latitudes of the Atlantic, and in other ocean basins, are not found to be significant compared to modeled internal variability