Sentences with phrase «increased during recent decades»

«Occurrence of these events has increased during recent decades when Arctic amplification has emerged as a strong signal.»

Not exact matches

He said: «The impact of increased sunshine during summer is large, it explains about two - thirds of Greenland's melting signal in recent decades.

The study also suggests that the accelerated melting of mountain glaciers in recent decades may explain a phenomenon that has long puzzled scientists — why Arctic and sub-Arctic rivers have increased their water flow during the winter even without a correlative increase in rain or snowfall.

«The noteworthy increase in the annual rate of heroin abuse or dependence among non-Hispanic Whites parallels the significant increase in nonmedical opioid use during the last decade and the growing number of heroin overdose deaths described for this race and ethnic group in recent years,» said Martins.

CO2 levels have been «increasing throughout the recent decades and 2014 was no different,» Deke Arndt of the National Centers for Environmental Information, part of the National Oceanic and Atmospheric Administration, said during a press call.

Lake sediment cores document increased chemical pollution of ecosystems during the past several decades traceable to tar sands development [157] and snow and water samples indicate that recent levels of numerous pollutants exceeded local and national criteria for protection of aquatic organisms [158].

As previously reported based on in - situ data, the rate of increase in atmospheric CO2 during the strong El Niño in 2015 - 16 was about 3 ppm / yr compared with ~ 2 ppm / yr in recent decades.

Both the radiosonde and reanalysis data show that the frequency of occurrence of high tropopause days in the subtropics of both hemispheres has systematically increased during the past few decades, so that tropical characteristics occur more frequently in recent years.

Some, not nearly all of these locations show a steady progression of increased temperatures — no more rapid during recent decades than from over a hundred years ago, one includes 346 continuous years of data.

... the probability of average flood events has decreased during recent decades while extreme floods are likely to increase.

In this presentation, I will explain new research that links increasing extreme weather events with the rapidly warming and melting Arctic during recent decades.

3) In my comment https://judithcurry.com/2011/08/04/carbon-cycle-questions/#comment-198992 I have explained that during recent three decades the increase of CO2 content in atmosphere is controlled by the rising temperature of global sea surface.

Increases in GrIS melt and runoff during this past century warm period must have been significant and were probably even larger than that of the most recent last decade (1995 - 2006).»

In this presentation, Dr. Francis will explain new research that links increasing extreme weather events with the rapidly warming and melting Arctic during recent decades.

Lake sediment cores document increased chemical pollution of ecosystems during the past several decades traceable to tar sands development [157] and snow and water samples indicate that recent levels of numerous pollutants exceeded local and national criteria for protection of aquatic organisms [158].

Monaghan et al. further note «recent literature suggests there has been little overall change in Antarctic near - surface temperature during the past 5 decades» and «the absence of widespread Antarctic temperature increases is consistent with studies showing little overall change in other Antarctic climate indicators during the past 50 years such as sea ice area and snowfall.»

Published assessments of historic changes in drought during recent decades have suggested that the frequency and area of droughts have been increasing.

The most recent global estimate shows an increase in precipitable water during the period 1973 - 1990, with the largest trends in the tropics, where increases as large as 13 % per decade were found.

Further, heat waves in the U.S. have not been increasing; the EPA's analysis of the heat wave index for the U.S. [link] shows that the index during the 1930's reached levels almost an order of magnitude greater than the recent decade.

None of these could have been caused by an increase in atmospheric CO2, Model projections of warming during recent decades have greatly exceeded what has been observed, The modelling community has openly acknowledged that the ability of existing models to simulate past climates is due to numerous arbitrary tuning adjustments, Observations show no statistically valid trends in flooding or drought, and no meaningful acceleration whatsoever of pre-existing long term sea level rise (about 6 inches per century) worldwide, Current carbon dioxide levels, around 400 parts per million are still very small compared to the averages over geological history, when thousands of parts per million prevailed, and when life flourished on land and in the oceans.

As surface temperatures have risen rapidly during recent decades, as compared to the preceding decades, increasing attention has been paid to the sun's potential impact on Earth's climate, but the size of this impact remains very controversial.