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Role of Ocean in Global Warming - J
Role of Ocean in Global Warming - J

... National Oceanic and Atmospheric Administration/Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA (Manuscript received 18 October 2006, in final form 2 February 2007) ...
Evolutionary response of the egg hatching date of LETTERS *
Evolutionary response of the egg hatching date of LETTERS *

... alter the reaction norm elevation). Thus, it is the winter moth’s response to temperature that has genetically changed. The genetic change in reaction norm is mainly a change in elevation and to a lesser extent in slope (Fig. 1b). Whereas the quantitative genetic model predicts the largest shift at ...
The 1430s: a cold period of extraordinary internal climate variability
The 1430s: a cold period of extraordinary internal climate variability

... 1450 were consistently average or warm (for the years 1430– 1439; Luterbacher et al., 2016; see Fig. S1 in the Supplement). Striking is the very cold decade 1451–1460, which is a consistent feature across all summer temperature proxy series and coincides with two very large consecutive volcanic erup ...
Global warming is the increase in the average temperature of Earth`s
Global warming is the increase in the average temperature of Earth`s

... how it was when I was a child. It seem like there was a long, long winter and summer wasn’t so hot, like in the last two years, it didn’t rain and snow so much, and actually I liked it better than the climate now. But why did it happened? Global warming is the increase in the average temperature of ...
Global Warming: Forecasts by Scientists versus Scientific Forecasts
Global Warming: Forecasts by Scientists versus Scientific Forecasts

... predictions without the aid of well-established forecasting principles. Thus, they could simply use the information to come up with judgmental forecasts. Alternatively, they could translate their beliefs into mathematical statements (or models) and use those to make forecasts. Although they may seem ...
Research Project Final Report
Research Project Final Report

... Freedom of Information obligations. This short report to Defra does not preclude contractors from also seeking to publish a full, formal scientific report/paper in an appropriate scientific or other journal/publication. Indeed, Defra actively encourages such publications as part of the contract term ...
Heat capacity, time constant, and sensitivity of Earth`s climate system
Heat capacity, time constant, and sensitivity of Earth`s climate system

... Figure 2. Time series of global ocean heat content anomaly (left axis) and global mean surface temperature anomaly (right axis). Global ocean heat content data L300, L700, and L3000, are from Levitus et al. [2005] for ocean depths from the surface to 300, 700, and 3000 m, respectively. For L300 and ...
Diurnal temperature range as an index of global
Diurnal temperature range as an index of global

... the potential effect on DTR due to the differential impact of urbanisation on Tmax and Tmin remains unclear. [6] Here, we transformed the 0.5° monthly grid of the original data set into a 5° latitude and longitude grid using area averaging. We then removed monthly grid boxes that did not contain any ...
Key aspects of global climate change
Key aspects of global climate change

... (new projections with an agreement for a small number of models); 4) restrictedly probable (model results are not certain but changes are physically possible). A principal difficulty in substantiation of projections consists in impossibility to unanimously predict the evolution of GHGs in the futur ...
Recent warming in a 500-year palaeotemperature record from
Recent warming in a 500-year palaeotemperature record from

... Abstract: Laminated sediments from Upper Soper Lake on southern Baffin Island provide a new 500-year record of temperature change in the Arctic. Radiometric dating, using 210Pb and Pu, shows that the light- and dark-coloured laminae couplets are annually deposited varves. Dark laminae thickness is s ...
LETTER Global metabolic impacts of recent climate warming
LETTER Global metabolic impacts of recent climate warming

... increases in metabolic rates of tropical and north temperate organisms. Recent studies using diverse physiological and biophysical approaches indicate that tropical ectotherms may be particularly vulnerable to climate warming2,7,13,14,24,27, even though observed and predicted tropical warming is rel ...
Global metabolic impacts of recent climate warming
Global metabolic impacts of recent climate warming

... increases in metabolic rates of tropical and north temperate organisms. Recent studies using diverse physiological and biophysical approaches indicate that tropical ectotherms may be particularly vulnerable to climate warming2,7,13,14,24,27, even though observed and predicted tropical warming is rel ...
Estimating intensive and extensive margin adaptation to climate
Estimating intensive and extensive margin adaptation to climate

... University, UC Irvine, Iowa State University, UCSB, Lawrence Berkeley Labs and Resources for the Future have provided valuable feedback. This is still a preliminary and in places incomplete draft and should not be cited without permission of the author who is solely responsible for any errors. ...
Variability and Trends of Air Temperature and Pressure in the
Variability and Trends of Air Temperature and Pressure in the

... 5–15 yr. Elucidating the mechanisms behind this relationship will be critical to understanding the complex nature of low-frequency variability. ...
Atmospheric circulation and hydroclimate impacts of alternative
Atmospheric circulation and hydroclimate impacts of alternative

... sequent sections. Annual-mean surface temperature and precipitation fields in our control case (Figure 2a,c) agree closely with those in the corresponding fully-coupled simulations of Huber and Caballero (2011); as discussed in that paper, the modelled temperature field reproduces the available prox ...
Greater temperature sensitivity of plant phenology at colder sites
Greater temperature sensitivity of plant phenology at colder sites

... temperature in that year over a summer time-window (model structure described below). The summer time-window was defined as either average May–June, June, June–July, or June– August mean monthly temperatures per year. We specified the summer time-window separately for each species and phenological e ...
Temporal trends and variability of daily maximum and
Temporal trends and variability of daily maximum and

... 1961–2003. Statistically significant warming trends were identified in various measures of the temperature regime, such as temperatures of extreme events and diurnal temperature range. The warming trends in winter nighttime temperatures were among the highest when compared with other regions. We als ...
On the relationship between metrics to compare greenhouse gases
On the relationship between metrics to compare greenhouse gases

... gas, usually CO2 . GWP is the standard option when comparing emissions of different greenhouse gases, e.g. in the Kyoto protocol. It was originally developed by Rodhe (1990), Shine et al. (1990) and Lashof and Ahuja (1990). See Forster et al. (2007) for the estimates of GWP values developed for IPCC ...
Northern Hemispheric cryosphere response to volcanic eruptions in
Northern Hemispheric cryosphere response to volcanic eruptions in

... a third-order low-pass Butterworth filter with a cutoff frequency of 15 years [Otterå et al., 2010] to filter the temperature records. The lowest panel shows the Gao et al. [2008] NH stratospheric loading of sulfates from volcanic eruptions as an indicator of timing and magnitude of eruptions during t ...
Prospectus for Future Research: Temperature Effects
Prospectus for Future Research: Temperature Effects

... photosynthetic respiration, meaning that they break down organic molecules into ATP at a fast rate (Dummermouth, 2003). Species such as Ulva bulbosa are able to keep high respiration rates over a wide range of temperatures, and for some green algae they are also able to maintain photosynthesis at hi ...
This PDF is a selection from a published volume from... Research Volume Title: The Economics of Climate Change: Adaptations Past and...
This PDF is a selection from a published volume from... Research Volume Title: The Economics of Climate Change: Adaptations Past and...

... (2007), Weitzman (2007), Mendelsohn (2008), and others point out, it makes assumptions about temperature change, economic impact, abatement costs, and discount rates that are outside the consensus range. ...
Insights from the ocean carbon cycle
Insights from the ocean carbon cycle

... The amplitude, however, is too strong, as was already shown for CCSM4 [Deser et al., 2012]. In conjunction with major volcanic eruptions (years 1258, 1452, and 1815) we find strong La Niña events and a shift of ENSO toward lower frequencies, both also visible in the sea level pressure-based Southern ...
Paleoclimate Implications for Human
Paleoclimate Implications for Human

... contrary: an imbalance approaching 1 W/m2 would be sufficient to melt all ice on Earth or change ocean temperature a large amount, contrary to numerous paleoclimate data records. Variability of solar luminosity on Pleistocene time scales is small. Therefore the changed boundary conditions that maint ...
Recent observed climate change over the Arabian Peninsula
Recent observed climate change over the Arabian Peninsula

... method which avoids the domination of stations with high mean values by averaging the stations time series anomalies. A base reference of 1985–2005 was used to calculate the station normals and anomalies following Jones and Moberg [2003] who used at least 20 years of data within the 30 year period t ...
Paleoclimate Implications for Human-Made Climate Change
Paleoclimate Implications for Human-Made Climate Change

... contrary: an imbalance approaching 1 W/m2 would be sufficient to melt all ice on Earth or change ocean temperature a large amount, contrary to numerous paleoclimate data records. Variability of solar luminosity on Pleistocene time scales is small. Therefore the changed boundary conditions that maint ...
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North Report

The North Report was a 2006 report evaluating reconstructions of the temperature record of the past two millennia, providing an overview of the state of the science and the implications for understanding of global warming. It was produced by a National Research Council committee, chaired by Gerald North, at the request of Representative Sherwood Boehlert as chairman of the U.S. House of Representatives Committee on Science.These reconstructions had been dubbed ""hockey stick graphs"" after the 1999 reconstruction by Mann, Bradley and Hughes (MBH99), which used the methodology of their 1998 reconstruction covering 600 years (MBH98). A graph based on MBH99 was featured prominently in the 2001 IPCC Third Assessment Report (TAR), and became a focus of the global warming controversy over the 1997 Kyoto Protocol. It was disputed by various contrarians, and in the politicisation of this hockey stick controversy the New York Times of 14 February 2005 hailed a paper by businessman Stephen McIntyre and economist Ross McKitrick (MM05) as undermining the scientific consensus behind the Kyoto agreement. On 23 June 2005, Rep. Joe Barton, chairman of the House Committee on Energy and Commerce, with Ed Whitfield, Chairman of the Subcommittee on Oversight and Investigations, wrote joint letters referring to issues raised by the Wall Street Journal article, and demanding that Mann, Bradley and Hughes provide full records on their data and methods, finances and careers, information about grants provided to the institutions they had worked for, and the exact computer codes used to generate their results. Boehlert said this was a ""misguided and illegitimate investigation"" into something that should properly be under the jurisdiction of the Science Committee, and in November 2005 after Barton dismissed the offer of an independent investigation organised by the U.S. National Academy of Sciences, Boehlert requested the review, which became the North Report.The North Report went through a rigorous review process, and was published on 22 June 2006. It concluded ""with a high level of confidence that global mean surface temperature was higher during the last few decades of the 20th century than during any comparable period during the preceding four centuries"", justified by consistent evidence from a wide variety of geographically diverse proxies, but ""Less confidence can be placed in large-scale surface temperature reconstructions for the period from 900 to 1600"". It broadly agreed with the basic findings of the original MBH studies, which subsequently been supported by other reconstructions and proxy records, while emphasising uncertainties over earlier periods. The principal component analysis methodology that McIntyre and McKitrick had contested had a small tendency to bias results so was not recommended—but it had little influence on the final reconstructions, and other methods produced similar results.
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