Sentences with phrase «recent decline in temperatures»

Phil Jones chopped the tail off a tree - ring proxy temperature data series and replaced it with instrumental data, because the proxy data indicated a recent decline in temperatures.

Not exact matches

A-C ranges from a luxury to a necessity to a literal lifesaver: a recent study (Alan Barreca et al., Adapting to Climate Change: The Remarkable Decline in the U.S. Temperature - Mortality Relationship over the 20th Century) by American economists showed heat - related deaths in the U.S. dropped from roughly 3,600 per year to just 600 around 1960.

The recent paper, published August 30 in Science Advances, found that without significant changes, Jordan could face lower rainfall, much higher temperatures and as much as a 75 percent decline in water flowing into the country from Syria.

At least in recent years, ARGO shows that mid-depth temperatures in the North Atlantic are rising, while surface temperatures are declining.

It remains to be seen whether a future return to a consistently strongly negative A.O. (typically associated with cooler temperatures and sequestered ice in the Arctic) would be sufficient to reverse the trend of the recent warming and ice decline.

Neil Fisher Posted Jun 12, 2010 at 7:51 PM If you read the document by Briffa referenced by the WMO leaflet the decline is well discussed: Fig 5 description: Note the recent disparity in density and measured temperatures (T) discussed in Briffa et al., 1998a, 1999b).

My views on the cuttlefish numbers are based on my own observations - as a long time diver and observer of the cuttlefish I have seen a drastic decline in numbers over recent years, and I have also noticed a marked increase in seasonal water temperatures.

http://www.woodfortrees.org/plot/rss/from:1980.1/plot/rss/from:1980.1/to:2003.6/trend/plot/rss/from:2003.6/trend There has been a declining temperature trend since then (Usually interpreted as a «pause») There is likely to be a steepening of the cooling trend in 2017 - 2018 corresponding to the very important Ap index break below all recent base values in 2005 - 6.

In recent years, Maine lobstermen have reported record lobster catches, which researchers believe may be related to warmer water temperatures in the south that force lobsters north as well as fewer predators in the Gulf, like cod, which have been in decline due to overfishinIn recent years, Maine lobstermen have reported record lobster catches, which researchers believe may be related to warmer water temperatures in the south that force lobsters north as well as fewer predators in the Gulf, like cod, which have been in decline due to overfishinin the south that force lobsters north as well as fewer predators in the Gulf, like cod, which have been in decline due to overfishinin the Gulf, like cod, which have been in decline due to overfishinin decline due to overfishing.

His position: • No evidence of increasing lake clarity as a result of secchi measurements since 1946 • The interplay of stratification and plankton productivity are not «straightforward» • Challenges O'Reilly's assumption on the correlation of wind and productivity - the highest production is on the end of the lake with the lowest winds • A strong caution using diatoms as the productivity proxy (it is one of two different lake modes) • No ability to link climate change to productivity changes • More productivity from river than allowed for in Nature Geopscience article • Externally derived nutrients control productivity for a quarter of the year • Strong indications of overfishing • No evidence of a climate and fishery production link • The current productivity of the lake is within the expected range • Doesn't challenge recent temp increase but cites temperature records do not show a temperature rise in the last century • Phytoplankton chlorophylla seems to have not materially changed from the 1970s to 1990s • Disputes O'Reilly's and Verbug's claims of increased warming and decreased productivity • Rejects Verburgs contention that changes in phytoplankton biomass (biovolume), in dissolved silica and in transparency support the idea of declining productivity.

Unexpectedly, though, recent satellite evidence suggests that between 1987 and 2007, temperatures have in fact declined along the west and south coasts (Rouault, personal communication).

Russian climate researchers working in Antarctica confirm that temperatures on the sixth continent have been declining in recent years.

The author presents volumes of data from actual weather station records that show average temperatures declining over recent decades in many places.

A recent study estimated that for every one - degree Celsius rise in temperature, Colorado river flows will decline by 3 — 10 % [18].

A subsequent decline in water vapour after 2000 could explain a recent slowdown in global temperature rise, the scientists add.

Recent changes in Pacific Ocean temperatures have been comparable to the decline seen at the end of the 1998 El Niño, although temperatures remain warmer than at the end of the most recent El Niño inRecent changes in Pacific Ocean temperatures have been comparable to the decline seen at the end of the 1998 El Niño, although temperatures remain warmer than at the end of the most recent El Niño inrecent El Niño in 2010.

So my answer to the first question is that yes, we have seen a plateau or even a decline in the surface temperature recent years, I don't think anyone is actually disputing this, but that Rose cherry picked his start date to make it look as if it has lasted longer than is actually the case.

The «hiding the decline» refers neither to Little Ice Age (as the Spiked Online version says) nor the recent pause in the upward trend of temperatures, but rather the pasting of current temperature data onto some rather dubious proxy data to continue the hockey stick pattern through the 20th century.

Moreover the recent decline of the yearly increments d (CO2) / dt acknowledged by Francey et al (2013)(figure 17 - F) and even by James Hansen who say that the Chinese coal emissions have been immensely beneficial to the plants that are now bigger grow faster and eat more CO2 due to the fertilisation of the air (references in note 19) cast some doubts on those compartment models with many adjustable parameters, models proved to be blatantly wrong by observations as said very politely by Wang et al.: (Xuhui Wang et al: A two-fold increase of carbon cycle sensitivity to tropical temperature variations, Nature, 2014) «Thus, the problems present models have in reproducing the observed response of the carbon cycle to climate variability on interannual timescales may call into question their ability to predict the future evolution of the carbon cycle and its feedbacks to climate»

The suggestion that recent warming is anthropogenic due to divergence from a simple 60/20 year curve fit over a mere 100 years ignores prior divergence from both competing models of distantly past temperature, one being a hockey stick that shows a slow decline instead of incline prior 1850 and the other showing two similar «non-cyclical» spikes in the Roman and medieval periods.

Now Judith Curry - a member of the BEST team no less (though her involvement in the project has been relatively minimal)- has claimed that the BEST team has tried to «hide the decline» in recent temperatures.

Most of the decline in global surface temperatures in recent years has been concentrated in the oceans.

This news comes in the wake of climate activist Jo Abbess's demands that the text of an article relating to the recent decline in world temperatures by BBC journalist Roger Harrabin be altered to reflect not the scientific reality, but to emphasise the catastrophic narrative.

«Hide the decline» refers to a recent decline in reliability, as defined as tracking measured temperature trends, of tree ring proxys, due to downward divergence of some (mostly nothern latitude) tree ring data compared to upward temperature trends.

Rather than being just a statistical anomaly, the recent cool temperatures seem to be part of a steady long - term decline in summertime highs in Chicago, Changnon and his colleagues found.

Here proxy estimates were combined with recent temperature measurements in order to hide a decline.

The problem is that as temperatures have risen in recent decades, the same tree rings that purport to show that the Medieval Warm Period (MWP) was not as warm as today, sort of peter out, you know, «decline.»

A recent decline in the rate of increased worldwide temperatures is masking the brow - sweating temperatures of the future.